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Cross multiply.
2 *21
7* x
42 = 7x
Divide each side by 7
x = 6
Related Questions
Please help me!
It is timed!
I will give brainliest!
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Answer:
The first one
Step-by-step explanation:
Rewrite the rational exponent as a radical expression (3 raised to 2/3) 1/6
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Order the following numbers from least to greatest.
-2, 1.7, -5/2
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Answer:
Step-by-step explanation:
－5/2<－2<1.7
use number line
Brainliest to the correct answer. Im stuck more on the question rather than the problem solving at hand if you know what i mean(if not just answer the question pls)
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Answer:
0.17
Step-by-step explanation:
have a good day!
.
Explain the power of products property and give an example.
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Answer:
We use the power of a product rule when there are more than one variable being multiplied together and raised to a power of something. The power of a product rule tells us that we can simplify a power of a power by multiplying the exponents and keeping the same base.
put 2/3 5/7 16/21 in order from least to greatest
Answers
Answer:
5/7, 2/3, and 16/21
Step-by-step explanation:
If you put them all under the same denominator you will get 2/3=14/21, 5/7= 10/21, and 16/21. And if you put them in order it is 10/21, 14/21, and 16/21. Hope this helps, let me know if correct!!
2/3, 5/7, 16/21
Step-by-step explanation:
turn them into decimals
Help Help Help Help...What does it take for an orbiting spacecraft to escape its orbit?
Answers
Answer:
Manual Override??
Step-by-step explanation: I'm prop wrong
Answer:
To leave its orbit, the spacecraft must go very fast to break free of gravity.
Step-by-step explanation:
b/5 = 8/16
(character limit)
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16/8=2 so then 5/2=2.5
What does the ordered pair (6,204) represent in this situation
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Answer:
what situation??
Step-by-step explanation:
Stuff
Hi everyone this is the last question can you please help me for brainliest
Answers
ANSWER PLEASE HERE IS THE QUESTION AND THE ANSWER
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Which division problem is represented with this model?
1/5÷6
1/2÷5
1/5÷2
1/6÷2
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Consider the two functions below. Which one of these functions is linear? What is its equation? Enter any answers to two decimal places.
Answers
Answer:
Function A and the equation would be y = 1.6666666666~x + 0
Step-by-step explanation:
A linear function is a function that is a straight line with no change so function B does not fit that description. So than it has to be A
To find the equation you first what to find the slope of the line
ΔY/ΔX = 5/3 = 1.666666666666
Take the slope and multiply it by x to get y
Following are the solution to the given function:
Given:
Function A:
[tex]\bold{x} \ 3 \ 6 \ 9 \ 12 \ 15 \\\\\bold{y} \ 5 \ 10 \ 15 \ 20 \ 25[/tex]
To find:
Find the function=?
Solution:
Function A or equation would've been [tex]\bold{y = 1.6666666666 \sim x + 0}[/tex].The linear equation is a straight line with really no modification, hence function B doesn't suit its description. As a result, it has to be A.You must first calculate the slope of the line to solve this equation.[tex]\bold{\to \frac{\Delta Y}{ \Delta X} = 5/3 = 1.666666666666}[/tex]To get y, take the slope then multiply this by x.Please help, I need help on this math question
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Answer:
Probably C
Step-by-step explanation:
Repeating Decimal: a decimal where a number or a pattern of numbers repeats forever
For example, 0.2222... or 0.671671.... (The "..." means that it repeats like that forever)
A. 3/7= 0.142857142857142857... (6 repeating digits) This is a repeating decimal because the last six digits continue forever
B. 3/4=0.75. This number is not a repeating decimal because a repeating decimal goes on forever, while this only has two decimal places.
C. 1/9= 0.11111... This is a repeating decimal because it goes on forever and has a pattern (all are 1s)
D. 5/11=0.454545... This is also a repeating decimal because the last two digits repeat forever.
There is probably something wrong with the question (or your unit) because three of these numbers are, in fact, repeating decimals. If I were you, I would ask your teacher (it gets you respect from the teacher=more chance that they'll be lenient with you)
But if you really don't want to, I would go with "C" because it only has one repeating decimal place, and your curriculum probably says that a repeating decimal is only one digit.
Good Luck! :)
OK i really really needs some help here real bad PLS
Answers
Answer:
w=12 b=8 p=2
Step-by-step explanation:
1 1/2 yd of white
1 yd of blue
1/4 yd of pink
2 3/4 yd in total.
times white, blue, and pink by 8
3/2x8/1 = 24/3=12
1x8=8
1/4x8/1=8/4=2
Answer:
White Fabric: 12 feet (4 yards)
Pink Fabric: 6 feet (2 yards)
Blue fabric: 24 feet (8 yards)
Step-by-step explanation:
1 yard=3 feet
1/4 yard=0.75 feet
1 1/2 yards=1.5 feet
3x8=24
0.75x8=6
1.5x8=12
I hope this is correct! I'm pretty sure it is :3
why can't 5√2x be simplified?
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Answer:
You can't simplify 5√2
The radical of 2 cannot be simplified.
It doesn't matter that there's a variable, the coefficent cannot be simplified anymore.
Ellena knows that 1/5 written as a decimal is 0.2. How can Ellema use this information to find the decimal equivalent for 9/5 without doing 9 divided by 5?
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I hope this helped :)
The decimal equivalent for 9/5 without doing 9 divided by 5 is 4.5
How to convert from decimal to fraction?For conversion from decimal to fraction, we write it in the form a/b such that the result of the fraction comes as the given decimal. Usually, to get the decimal of the form a.bcd, we count how many digits are there after the decimal point (if its finite), then we write 10 raised to that many power as denominator, and the considered number without any decimal point as numerator.
WE are given that Ellena knows that 1/5 written as a decimal is 0.2.
Thus Ellema use this information to find the decimal equivalent for 9/5 without doing 9 divided by 5
By multiplying 0.2 by 9 we can get the decimal equivalent of 9/5.
0.2 x 9 = 4.5
Hence, the decimal equivalent for 9/5 without doing 9 divided by 5 is 4.5
Learn more about place value here:
https://brainly.com/question/17983725
#SPJ2
I have 2 questions. Please help! I will mark the Brainliest for the best answer(s)
1. Jane, Fay, and Henry had a total of $90. After Jane gave $12 to Henry and Fay gave $2 to Jane, all three of them had the same amount of money. How much money did each of them have in the beginning?
Jane has $__
Fay has $__
Henry has $__
2. The sum of three consecutive numbers is 723. Find the numbers.
The answer that is worth the Brainliest has all the answers to my questions, and is correct.
Answers
Answer:
1. J=20, f= 28, H=42
2. 240 + 241 + 242 = 723
Step-by-step explanation:
J= 30- 12= 18+2= 20
F= 30-2=28
H=30+12=42
2.
240 + 241 + 242 = 723
Fay has $32 to begin with
Henry has $18 to begin with
They all end with the same amount which must be 30.
40-12=28.- Jane 18+12=30- Henry
32-2=30-Fay. 28+2=30
2. 240+241+242= 723
SHOW UR WORK!!! WILL GIVE BRAINLEST
The right hexagonal pyramid has a hexagon base with equal-length sides. The lateral faces of the pyramid are all triangles (that are exact copies of one another) with heights of 18 ft. Find the surface area of the pyramid.
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plssssssssssssss help
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What are the 7 & 9 for? Obviously, you had info from somewhere else for the 9 & 7 if they are THE ONLY NUMBERS here
in mrs. smiths class every time you turn in assignments you earn 1 homework pass. write 3 equivalent ratios of turned in assignments to homework passes
help please I need it
Answers
Answer:
Assignment to Homework: 3:9 4:12 5:15
Answer:
3:9 4:12 5:15
i think
Step-by-step explanation:
On his way to the library , Jeff runs two blocks and then walks three more blocks.Sketch a graph to show the distance Jeff travels compared to time.
Answers
Answer:
Since I can't take a picture, I am going to explain how to draw it.
Step-by-step explanation:
When sketching the graph you must note if jeff is going up the y-axis and along the x-axis. In this case, run means he goes up every minute. So when jeff runs he is going up and 2 minutes have gone by. And when he walks he is going up 3 more but slower so it would double the time. Time would be on the x-axis and blocks would be labeled on the y-axis.
Hope this helps. : )
1. The school office is now selling neon mechanical pencils. If the office pays $10.80 for a dozen pencils, how much should be charged to make a profit of 75 cents each?
2. Several cases of 16-ounce bottles of water were purchased for $252.00. If one case costs $7.00, how many cases were purchased?
3. Okolona College ordered jerseys to sell at the homecoming game. The college paid $9.25 each for 225 jerseys. Each jersey was sold for $15.75. What was the percent of markup for each jersey? How much profit was made if all of the jerseys were sold?
4. A truck traveled 654 miles on a long distance run. If the truck averaged 55 mph, how many hours did it take to reach the truck's destination? (Round to the nearest hour)
5. Della Riley borrowed $2400 for 6 months to invest in a business venture. If she agreed to pay 8% interest annually, how much will she be repaying?
6. It takes Dan an average of 45 minutes each evening to do his chemistry homework. Dan calculates that he worked a total of 3 hours on chemistry last week. Assuming that Dan worked his average time per evening consistently, how many evenings did Dan work?
7. Jon's car averages 20 mpg in town and 28 mpg on the road. What is the percent of decrease between the two driving conditions?
Answers
Answers:
1)10.80/12 =0.90
0.90+0.75=1.65
2)252/7=36 units
3)cost price = $9.25*225
= $2081.25
Selling price = $15.75*225
= $3543.75
Profit = Selling price - cost price
Profit = $3543.75 - $2081.25
=$1462.50
5) FV = L*(1 + rt),
Where FV is the amount to repay; L is the borrowed amount (the loan amount) and "r" is the annual interest as decimal; t is the time.
In your case L = 2400 dollars; r = 8% = 0.08 (as decimal) and t = 0.5 of a year (6 months).
Therefore,
FV = 2400*(1 + 0.08*0.5) = 2496.
In 6 months, Della Rilley must repay $2496
4) 654miles/55mph=11 hours, 53 minutes, 27 seconds ANS: ap.12 hours
time = distance/speed
6) 60*3=180mins
180/45=4
Ans: 4 days
7) This is a decrease of 8
a decrease of 28.57% rounded to two decimals
2.) 36 cases of 16 ounce were purchased
3.) a profit of 1,462.50
help me you dont have to do all of them but if you do pls i will give you the brainiest
Answers
No. 19 X= -8
No.20 R=10
No.21 X=0
No.22 B=7
No.23 V=-4
No.24 N=10
No.25 X=7
No.26 K=4
No.27 N=-4
No.28 X=-7
Yesterday noah ran 2 1/2 miles in 3/5 hour. Emily ran 3 3/4 miles in 5/6 hour. Anna ran 3 1/2 miles in 3/4 hour how fast in miles per hour did each person run? Who ran the fastest? !!SHOW WORK!!
Answers
Answer:
Step-by-step explanation:
To calculate the speed of each one we proceed as follows:
speed=distance/time
a] Noah's speed:
distance=2.5 miles
time=3/5 hours
speed=(2 1/2)/(3/5)
=(5/2)/(3/5)
=5/2×5/3
=25/6
=4 1/6 mi/hr
Emily's speed
distance=3 3/4 miles
time=5/6 hour
thus
speed=(3 3/4)/(5/6)
=15/4)/(5/6)
=15/4×6/5
=4 1/2 mi/hr
Anna's speed:
distance=3 1/3 miles
time=3/5
speed=(3 1/3)/(3/5
=(10/3)/(3/5)
=10/3×5/3
=5 5/9 mi/hr
Anna was the fastest
please help me! will give brainliest
do #5 and#6
Answers
y=44x+12
x is the amount of tickets
y is the total amount paid for a certain amount of tickets
Ms. Kline is baking cookies. She wants to bake cookies for eight friends. Each friend needs to receive at least ten cookies. The recipe she is using makes 55 cookies in one batch.
1. How many batches of cookies does she need to bake to give each person ten cookies?
2. How many cookies will be left over?
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55x2=110
110-80=30
So you would need to make 2 batches and you would have 30 cookies left over
Aubrey says that the product of 104 and 10–2 is 10–8. Is she correct? If not, explain why.
A. Yes, she is correct.
B. No, the exponent should be positive 8.
C. No, she multiplied the exponents instead of adding them.
D. No, she multiplied the exponents instead of subtracting them.
Answers
Answer:
C
Step-by-step explanation:
No, she multiplied the exponents instead of adding them.
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for the girls and the gays :)
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Which number has only two factors?
A 21
B 27
C 25
D 23
please help-
Answers
Answer:
23
Step-by-step explanation:
