All categories

3 years ago

-7(y-1)= 21 Show how you answered the question step by step.

Mathematics

2 answers:

Stolb23 [73]3 years ago

6 0

Step-by-step explanation:

-7(y-1)= 21

-7y+7=21

-7y=21-7

-7y=14

divide by-7

y=-2

enyata [817]3 years ago

5 0

Answer:

y = - 2

Step-by-step explanation:

Given

- 7(y - 1) = 21 ( divide both sides by the multiplier - 7 )

y - 1 = - 3 ( add 1 to both sides )

y = - 2

You might be interested in

write the following expression as a multiple of the sum of two whole numbers with no common factor 54 + 78

Alex

Answer:

132

Step-by-step explanation:

7 0

3 years ago

How do you find the number of degrees in a third angle of a triangle

Setler79 [48]

every triangle must equal 180 degrees so add the other two angles and subtract by 180 to get that angle

Hope this helps :)

3 0

3 years ago

Find the value of the expression 9.18 · z for z = 2.

loris [4]

Answer: 18.36

Step-by-step explanation:

Replace "z" with "2":

$9.18 \cdot 2 = \boxed{18.36}$ .

8 0

3 years ago

¼c+3d when c and d=7

-Dominant- [34]

Answer:

22.75

Step-by-step explanation:

you substitute the 7 in for c and d. Following PEMDAS, you would then do (1/4) multiplied by 7 and 3 times 7. add those 2 together and you get 22.75 :)

8 0

3 years ago

This kind of transformation can change the _________.

Sholpan [36]

Answer:

The correct answer option is C. Both A and B.

Step-by-step explanation:

We are given a figure of a rectangle which when transformed changes it length of two sides AB and DC to AB' and DC'.

By looking at the figure, we can conclude that the transformation has changed the lengths of some sides of the given figure as well as changed the area of the figure.

Therefore, the correct answer option is C.

4 0

3 years ago