Mathematics High School

WILL MARK BRAINIEST
Zach and Ginny are building model cars. Ginny's car is 2 more than 3 times the length of Zach's car. The sum of the lengths of both cars is 30 inches. Write an equation to determine the lengths of Zach's and Ginny's cars.
3x + 2 = 30
x + 2 + 3x = 30
2x + 3 = 30
x + 2x + 3 = 30

Answers

Answer 1

Answer:

x + 2 + 3x = 30

Step-by-step explanation:

Both lengths are unknown, but Ginny's car length is described in terms of Zach's car length, so we choose a variable for Zach's car length.

Let x = Zach's car length.

Zach's car length is x.

"Ginny's car is 2 more than 3 times the length of Zach's car."

Ginny's car length is 2 + 3x.

Add the lengths:

x + 2 + 3x

"The sum of the lengths of both cars is 30 inches."

x + 2 + 3x = 30

Answer: x + 2 + 3x = 30

Related Questions

Ok my question is What is the missing number in the pattern above?
7,680 , 1,920, ______ , 120 , 30 ?
and my options are : A. 210 B. 480 C. 900 D. 1,440

Answers

answer is option B 480 because it is getting reduced by 4 times at Evey step

Answer:

30*4=120

120*4=480

answer=480

Step-by-step explanation:

Damon works 32 hours per week and earns $10.75 per hour.

a. Estimate his weekly earnings. Explain how you determined

your estimate.

b. Find the exact amount he earns per week.

c. Is your answer reasonable based on your estimate? Explain.

u will be awarded brainlest if u answer this correctly.

Answers

A 340
B 10.75 times 32 is 344$
C they are both close

The 100th term of the pattern : 5 , 9 ,13 , 17.

Answers

Answer:

Tn=4n+1

4(100)+1

400+1

=401

Help geometry need help

Answers

3 is the answer. The missing piece is 3

how many seconds are in 5 hours abs 30 minutes

Answers

Answer:

19800 seconds

Step-by-step explanation:

Select the correct answer.
A vegetable farmer fills of a wooden crate with 1 of a pound of tomatoes. How many pounds of tomatoes can fit into one crate?
A. 2 pounds
B. of a pound
c 11 pounds
D. 14 of a pound

Answers

I think the answer is A, i’m not sure about that

Find the location of K

Answers

Answer:

-2

Step-by-step explanation:

-8.2 +9.1
Yes I’m just making sure I got this question right but tell me what the answer is pls!

Answers

Answer:

0.9 is your answer.

What is the mean of the data set: 12. 19, 38, 52. 55 Answer must be to the tenths
place to be counted correct.

Answers

[tex]\boxed{\sf Mean=\dfrac{Sum\:of\:terms}{No\:of\:terms}}[/tex]

[tex]\\ \sf\longmapsto Mean=\dfrac{12+19+38+52+55}{5}[/tex]

[tex]\\ \sf\longmapsto Mean=\dfrac{176}{5}[/tex]

[tex]\\ \sf\longmapsto Mean=35.2[/tex]

Share £18 into the ratio 1:5

Answers

Ratio= 1:5
Total parts = 1+5 = 6

1/6 * 18 = £3
5/6 * 18 = £15

Yea also all of this

Answers

Answer:

yea I cant really do this over a screen

Answer:

16) photo

Step-by-step explanation:

- parallel lines never meet (a, b, c have no points in common)

- perpendicular lines meet other lines at one point, forming two angles of 90 °

how do you solve x/4+7=-2

Answers

[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]

How do you solve x/4+7 = -2

[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]

[tex] \large \sf \frac{x }{4} + 7 = - 2 \\ [/tex]

Multiply both sides of the equation by 4.

[tex] \large \sf \: x+28=-8 [/tex]

Subtract 28 from both sides.

[tex] \large \sf \: x=-8-28 [/tex]

Subtract 28 from -8 to get -36.

[tex] \large \boxed{ \bf \: x=-36 }[/tex]

9
. 10
11
12
Yesterday, Jessica had 95 baseball cards. Today, she got d more. Using d, write an expression for the total number of baseball cards she has now.
ローロ

Answers

Answer:

95+d

Step-by-step explanation:

is -15 an integer and rational number?​

Answers

Answer:

I guess it would help you

i hope this helps i’m not to sure if it is a integer or a rational number

Find the measures of the indicated angles pictures included!!!

Answers

Answer:

25

Step-by-step explanation:

The angles b and 65 are complementary, meaning they sum to 90 degrees. You know this because those 2 angles and the right angle are sitting on a straight line. So, together they equal 180 and 180-90 is 90. Therefore, angle b+65 must equal 90. So, simply subtract 65 from 90 to get the answer, 25.

Is 28 an integer, rational, or an irrational number?

Answers

Answer:

integer

Step-by-step explanation:

please give brainliest

Answer:

28 is an integer and a rational number because it is a whole number and it is positive. if there is only one choice, choose rational.

Step-by-step explanation:

hope this helps!

Perimeter of Triangle Please. Thank you ASAP

Answers

Step-by-step explanation:

The perimeter of a parallelogram is twice the sum of the length of a longer and a shorter side.

The length can be evaluated by the distance formula between two points (x_1,y_1), (x_2, y_2)

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

For the longer side,

[tex]d=\sqrt{(7-(-4))^2+(3-2)^2}=\sqrt{122}[/tex]

or the shorter side,

[tex]d=\sqrt{(7-6)^2+(3-(-2))^2}=\sqrt{26}[/tex]

Therefore, the perimeter is given by,

[tex]2(\sqrt{122}+\sqrt{26})\approx254.2[/tex]

A copy machine makes 44 copies per minute. How long does it take to make 187 copies

Answers

It will take 4 minutes and 15 seconds, to make 187
187 / 44 = 4.25
60 seconds per minute / .25 (4) = 15 seconds
So, 4 minutes and 15 seconds (4.25 minutes) is how long it will take to make 187 copies

This is confusing and makes no sense

Answers

Answer:

A is the answer

rrrrrrrr

Lol help me :0

Company Employees attended a year end banquet. 43of the quests ordered chicken, while 12 more of them ordered steak and 9 fewer ordered seafood. How many quests attended the banquet?

I did 43+12-9 which = 46
But tbh I think i might be completely wrong. This is for Algebra 2 so why would a teacher give me this easy of a question. I'm also just thinking not to smart LOL please help

Answers

Answer:

58

Step-by-step explanation:

only 3 people ordered seafood so u add 43 12 and 3

SORRY IF I AM WRONG

Find the least number which when divided by 28, 50 and 140 leaves a remainder 7 ​

Answers

Answer: 21

Step-by-step explanation:

Let's solve :

First we have to find LCM (lowest common multiple) of the given number, i.e 700.

28 = 2 × 2 × 7

50 = 2 × 5 × 5

140 = 2 × 2 × 5 × 7

LCM = 2 × 2 × 5 × 5 × 7 = 700

now, let's add 7 to 700

We get the required number as 707

Somebody help me?
I’ve been stuck on the same question for days now

Answers

Answer:

7

Step-by-step explanation:

You've said that both triangle are equal.

This means, both are in proportion

Let the unknown side be x

4 : 5 : x = 36 : 45 : 63

Divide LHS by 9

4 : 5 : x = 4 : 5 : 7

Since you may see x and 7 are same. So, the missing side is 7.

Answer:

Step-by-step explanation:

[tex]\frac{AB}{PQ} = \frac{BC}{QR}[/tex]                      #1 Find same sides  

So, [tex]\frac{4}{36} =\frac{BC}{63}[/tex]                 #2 fill it in.

36BC= 252                 #3 Cross multiply.

[tex]\frac{36BC}{36}[/tex]= [tex]\frac{252}{36}[/tex]                      #4 Divide by 36

BC= 7                           #5 Here's your answer!

If you want to check, plug the sides in.

[tex]\frac{4}{36} =\frac{5}{45} =\frac{7}{36}[/tex]

[tex]\frac{1}{9} =\frac{1}{9} =\frac{1}{9}[/tex]

The siplified fractions should all equal the same number. If they do, the triangles are similar.

Hope this helps!

Plz mark me the Brainliest!

Good Luck!

Lee weighs 130 4/5 pounds. He lost 5.2 pounds then gained 3 pounds. What is Lee's
current weight? Write an expression and solve.

Answers

Answer:

128.6 pounds

Step-by-step explanation:

130 4/5 - 5.2 + 3

=, 128.6pounds

Please help! You don’t have to explain how you got the answer! Tysm.

Answers

1.) .777777778
2.) .8
3.) .6
4.) .285714286
5.) .15

2x^2-y if x=3 and y=8

Answers

Answer:

= 10

Step-by-step explanation:

x = 3

y = 8

just replace that x and y with the values given

[tex]2x^{2}[/tex] - y

2 ([tex]3^{2}[/tex]) - 8

2 (9) -8

18 - 8

= 10

The answer is 10
Because of PAMDAS you do 3 to the second power first which equals 9. 9x2 is 18. And then 18 - 8 = 10. In all, You just plug x and y in and then solve by PAMDAS.

a:b=2:3
b:c= 5:6
Show that a:c=5:9

Answers

Answer:

see explanation

Step-by-step explanation:

Expressing ratios in fractional form, then

[tex]\frac{a}{c}[/tex] = [tex]\frac{a}{b}[/tex] × [tex]\frac{b}{c}[/tex] = [tex]\frac{2}{3}[/tex] × [tex]\frac{5}{6}[/tex] = [tex]\frac{1}{3}[/tex] × [tex]\frac{5}{3}[/tex] = [tex]\frac{5}{9}[/tex]

That is a : c = 5 : 9

Write the slope-intercept form of the given line. Include your work in your final answer.

Answers

Step 1: Find the slope:
To find the slope, find two points on the graph and count the “rise over run” between the points.
Two points here are (0,-1) and (2,1). To get from (0,-1) to the other point, you need to go “up 2” and then “right 2”. This means your slope is 2/2 or 1.

Step 2: Find the y-intercept:
We can see the y-intercept is (0,-1) on the graph. We’ll use the “-1” from that point for our equation.

Step 3: Put it all together:
The slope-intercept form is y=mx+b, where m is the slope and b is from the y-intercept.
Putting Step 1 and Step 2 into play, we have:
y = x - 1

Note: since m=1, we don’t need to write y = 1x -1. That 1 on the 1x is unnecessary.

Which of the following points lies on the line 2x+y=6? 1. (1.4) 2.(0,6) 3. (2,0) A. I only B. 2 only C. 3 only D. 1 and 2 only E. 2 and 3 only​

Answers

Your answer is D. 1 and 2 only

Solve for x and show work I will mark brainlyest


3(x-2) + 7 = 2(x+5)

Answers

Answer:

Step-by-step explanation: please do mark as brainliest

Just got back to class after summer, brain needs some refreshing.

Answers

The domain is the x-values used by the graph.
The range is the y-values used by the graph.

With respect to the x-axis, the graph starts at 0 on the left and goes as far as x=15.
With respect to the y-axis, the graph starts as low as 0 (vertically) and goes as high as 75.

The range is 0≤x≤15.
The domain is 0≤y≤75.
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