First, we will use elimination to solve for y.
[tex]5x = -30 + 5y\\20y = 105 + 5x\\\\5x - 5y = -30\\-5x + 20y = 105\\\\15y = 75\\\\y = 5[/tex]
Now, we will use what we got for y to solve for x.
[tex]5x = -30 + 5(5)\\\\5x = -30 + 25\\\\5x = -5\\\\x = -1[/tex]
Solution:
[tex](-1, 5)[/tex]
what is
-5x-y=21
y=4x+6
Answer:
(x,y)= (-3,-6)
Step-by-step explanation:
Answer:
Substitution substitution
Step-by-step explanation:
(-3,-6)
or
x= -3 y=-6
which slopes could be the slopes of perpendicular lines?
1/2 and 2
8 and -1/8
2 and 2
1 and -1
0 and undefined
Answer:
0 and undefined
Step-by-step explanation:
Which transformation maps B (2,5) to B'(-2,-5)?
A. A 90 degree rotation
B. Reflection about the y-axis
C. A 270 degree rotation
D. A 180 degree rotation
Answer: B
Step-by-step explanation: Because the positive numbers changed to negatives meaning that it flipped over an axis and since both of them changed it would be the y-axis
Find the length of BC.
A)8
B)12
C)16
D)18
Answer:
i think its A (edit: im gonna take that back because i was looking at the wrong side, logically it is 12)
Step-by-step explanation:
Answer:
B. 12
Step-by-step explanation:
logically speaking is 12
HI SOMEONE PLS HELP ME
Answer:
d
Step-by-step explanation:
because there is a closed dot at -4 you use the one with a line under it showing it is included and because there is open at 4 you use one without a line to show it is not included
5(–9x + 1) + 5 = –10x + 5(–7x + 2)
Answer:-
here's the answer
If you are in a store and there is a discount sale u buy something and the original price was $45 and the discounted price was $18 what was the discount?
Answer:
Alternatively, if you notice that 25/100 simplifies to 1/4, we can use 1/4 in our ... Then we subtract this discount from the original price yielding 48 – 12 = 36; thus, ... There is a sale for 20% off on a sweater your grandma wants to buy you for ... the store and gets an additional 25% discount off the already discounted sale price.
(:
Answer:
40% off. 40% of 45 is 18
Step-by-step explanation:
Acell phone weighs about 2.8x 10" pounds. Which value of n is most reasonable?
O1
Answer:
write in algorithm and draw a flowchart to calculate the factorial of a number (N). verify your results by a trace table by assuming N=5
Find the quotient 3/5 divided by 8
Answer:
A.
Step-by-step explanation:
Answer: The answer is A 3/40
Step-by-step explanation: [tex]\frac{3}{5} :8=\frac{3}{5} * \frac{1}{8} =\frac{3*1}{5*8} =\frac{3}{40}[/tex]
6th Grade Math Homework!
Will give brainiest!
15 Points!!
Please solve
ONLY ANSWER IF YOU HAVE THE ANSWERS
Don't need to explain
Keep in mind there are 2 pictures!
PLEASE HELP!! AND FAST!!
Answer:
The answer to #6 is 255
The answer to #7 is the mint milkshake is thicker
The answer to #8 is A is 12 and B is 18
The answer to #9 is A is 33 and B is 15
Missing values:
1. 1:7 , 3:21, 18:126
2. 20:12 , 10/3:2 , 8 1/3:5
3. 42:21 , 6:3 , 48:24
4. 4:10 , 8:20 , 16:40
5. 36:32 18:16
Step-by-step explanation:
#2: The first ratio is shown, which is 5:3. Meaning, that the bottom number (cakes) is multiplied by 5/3 in order to get the top number (pies). We can apply that to the ratio with 12 cakes, 12 multiplied by 5/3 is 20. The next ratio involved 10/3 pies. Since that is the "top" number (see chart), 10/3 need to be multiplied by 3/5 instead of 5/3. By doing that, the number of cakes is 2.
#7: The ratio of milk to ice cream in the mint milkshake is 1.25:4
The ratio of milk to ice cream in the strawberry milkshake is 1.75:5
When the ratios are divided, the quotient for the mint milkshake (0.3125) is LESS than the quotient for the strawberry milkshake (0.35). This means that there is less milk and more ice cream (ratio-wise) in the mint one.
Question 8 (1 point)
Solve the equation:
5(y+2)=-35
O
a
y=-7
y=-17
b
y=-5
ос
Od
y=-9
Answer:
D. y = -9
Step-by-step explanation:
HELP PLS IDK WHAT TO DO
Answer: hmmm i think u should multiply
Step-by-step explanation:
Answer:
gfbngfjhbfgnbfhbnng
Step-by-step explanation:
Need these proofs solved ASAP 45 pts I will give brainliest
Answer:
Step-by-step explanation:
im not sure buddy
The function f is defined by the following rule. =fx−2x2 Complete the function table. x fx −4 0 2 3 5
Answer:
f(−3)=21
Step-by-step explanation:
To evaluate f( -3) substitute x = - 3 into f(x)
⇒f(−3)=2(−3)2−(−3)=(2×9)+3=21
Using correct notation, describe the limit of a function.
Use a table of values to estimate the limit of a function or to identify when the limit does not exist.
Use a graph to estimate the limit of a function or to identify when the limit does not exist.
Define one-sided limits and provide examples.
Explain the relationship between one-sided and two-sided limits.
Using correct notation, describe an infinite limit.
Define a vertical asymptote.
the LCM of 6 and 9 is _____.
Answer:
18
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
Please help me........
Answer:
C
Step-by-step explanation:
subtract
The system of equations is graphed on the
coordinate plane.
y = x - 1
y = -2x - 4
Enter the coordinates of the solution to the
system of equations in the boxes.
(___,___)
Gabrielle is 8 years older than Mikhail. The sum of their ages is 58. What is Mikhail's age?
Answer:
Mikhail is 50 old why because Gabrielle and they said the sum of their age is 58 so that mean Mikhail is older 58-8=50
Step-by-step explanation:
What is the circumference?
7 ft
Answer:
C = 7π
Step-by-step explanation:
Diameter: 7 feet
Formula: C = πd (Circumstance = π × Diameter)
C = 7π
Write the word sentence as an equation.
The sum of a number x and 4 equals 12.
An equation that represents this sentence is
.
Answer:
x+4=12
x in this equation would be 8
Answer:
X + 4 = 12
Step-by-step explanation:
you write it in a equation for like if you were writing whats two plus two equals 4 write it equation form ? The answer would be 2+2=4
Solve the inequality
22 + 4x - 32 < 0
Answer:
x=5
Step-by-step explanation:
22 + 4x - 32 < 0
+32 +32
22 + 4x < 32
-22 -22
2x < 10
divide by 2
x=5
Triangle CAT is an isosceles triangle with base angles C and T each represent by (3x + 11) degrees, while angle A is represented by (9x + 8) degrees. Find the measure of angle C.
Answer:
Angle C = 41°
Step-by-step explanation:
Given:
Angle C = (3x + 11) degree
Angle T = (3x + 11) degree
Angle A = (9x + 8) degree
Find:
Angle C
Computation:
Using angle sum property
(3x + 11) + (3x + 11) + (9x + 8) = 180
15x + 30 = 180
x = 10
So,
Angle C = (3x + 11) degree
Angle C = 3(10) + 11
Angle C = 41°
An angle measures 90° less than the measure of its supplementary angle. What is the measure of each angle?
Answer:
Supplementary angles add up to 180 degrees more than the other, you can formulate an equation 180=(100+x)+x80=2x so, x=40 the other angle is 100 degrees more. So, the angle lengths are 40 and 140 degrees
A gaint kite is contrstrused using bamboo for the edges and diagonals and card for sail. When mapped on the diagram, the ends are at P(2,-2) and R(14,-14) and the diagrams intersects at M. The short diagonals Qs divides RP in the ratio 3:1 and MP = MS calculate. C.The equation of diagonals
If Sally has 2 apples a Jeremy has 9 apples how did they get 24?
A tuple is immutable. What does that mean?
O Atuple can be moved after it is created.
O Atuple cannot be changed once it is created.
A tuple can be changed after it is created.
O Atuple cannot be moved once it is created.
Answer:
A tuple cannot be changed once it is created.
Step-by-step explanation:
Which of the following equations shows the commutative property of multiplication?
A.8x0=0
B.3 x 11 = 11 x 3
C.7 + 7 + 7 = 3 x 7
D.(4 x 2) x1 = 4 x (2 x 1)
Answer: D.(4 x 2) x1 = 4 x (2 x 1)
A caterer needs to buy 21 pounds of pasta to cater a wedding. At a store, 8 pounds of pasta cost $12. Hom much will the caterer pay for the pasta here?
All I know is how to find the unit rate but I can't figure that out.
Answer:
$31.50
Step-by-step explanation:
First you need to find out how much a single pound costs($12/8 lbs). That ends up equaling $1.50, so multiply that by 21 and you got the answer. :)
Antonio has $350 to spend on skis. Sales tax is 6%. Decide if each description of a price and discount, plus sales tax, represents a pair of skis that Antonio can purchase with the money he has. Choose yes or no for each description.
Answer: See explanation
Step-by-step explanation:
Antonio has $350 to spend on skis. sales tax is 6%. decide if each description of a price and discount, plus sales tax, represents a pair of skis that antonio can purchase with the money he has. choose yes or no for each description. a. 25% off $450 b. 20% off $385 c. $20 off $360 d. 15% off $360 e. $10 off $340.
The amount of money that Antonio can spend will be:
= $350 - (6% × $350)
= $350 - (0.06 × $350)
= $350 - $21
= $329
a. 25% off $450
= $450 - (25% × $450)
= $450 - (0.25 × $450)
= $450 - $112.50
= $337.50
No
b. 20% off $385
= $385 - (20% × $385)
= $385 - (0.2 × $385)
= $385 - $77
= $308
Yes
c. $20 off $360
= $360 - $20
= $340
No
d. 15% off $360
= $360 - (15% × $360)
= $360 - $54
= $306
Yes
e. $10 off $340
= $340 - $10
= $330
No.
Based on the $329 that Anthony has, he can make purchases on:
b. 20% off $385
d. 15% off $360
Solve the equation.
5 days = how many hours
Answer:
120
Step-by-step explanation:
There's 24 hours in a day
24 times 5 equal 120
