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4 years ago

Plz help me Will mark brainliest

Mathematics

1 answer:

Ahat [919]4 years ago

3 0

For question one.

Substitute numbers for variable

7=m*5+10

fip equation

5m +10=7

now solve for m

subtract 10 from both sides

5m=-3

divide both sides by 5

you end up with a fraction

Answer -3/5

Question 2

perimeter of a rectangle is p=2L+2W

L=length W=width

They are telling you that L=12 and W=5

substitute numbers for variables

p=2*12+2*5

Answer 35

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5x + 5x =10x____^a0

PSYCHO15rus [73]

5(x + 10)? A.5x + 10 B.5x + 10x C.5x + 50 D.5 + x + 10.

7 0

3 years ago

Suri's age is 4 less than 3 times her cousin's age. Suri is 17 years old. Which method can be used to find c, her cousin's age?

Mila [183]

Answer:

7 years

Step-by-step explanation:

Suri's age=17 years

Her cousin's age =c

Suri's age is 4 less than 3 times her cousin's age

4 less than 3 times her cousin's age means subtract 4 from 3 times her cousin's age

17=3c - 4

Find c which is her cousin's age

Add 4 to both sides

17+4=3c - 4 + 4

17+4=3c

21=3c

Divide both sides by 3

21/3=3c/3

7=c

Therefore,

C= 7

Her cousin's age = 7 years

4 0

3 years ago

Maria bought seven boxes. A week later half of all her boxes were destroyed in a fire. There are only 22 boxes left. With how ma

Sloan [31]

Answer:

22*2

=44

Step-by-step explanation:

7 0

3 years ago

I really think it’s B ...Help?

kvv77 [185]

The correct answer is c y-5=4(x-7)

7 0

3 years ago

Which lines are perpendicular to the line y – 1 = (x+2)? Check all that apply.

Ilya [14]

Answer:

none of them

Step-by-step explanation:

Two lines are perpendicular when satisfy the next equation: m1*m2 = -1, where m1 and m2 are the slopes o the lines.

line 1:

y – 1 = (x+2)

y = x + 3

slope of line 1 = 1

line 2:

y + 2 = –3(x – 4)

y + 2 = -3*x + 12

y = -3*x + 10

slope of line 2 = -3

m1*m2 = 1*(-3 ) = -3

They are not perpendicular

line 3:

y − 5 = 3(x + 11)

y − 5 = 3*x + 33

y = 3*x + 38

slope of line 3 = 3

m1*m3 = 1*3 = 3

They are not perpendicular

line 4:

y = -3x –

slope of line 4 = -3

m1*m4 = 1*(-3 ) = -3

They are not perpendicular

line 5:

y = x – 2

slope of line 5 = 1

m1*m5 = 1*1 = 1

They are not perpendicular

line 6:

3x + y = 7

y = -3x + 7

slope of line 6 = -3

m1*m6 = 1*(-3 ) = -3

They are not perpendicular

5 0

4 years ago

Read 2 more answers

Plz help me ***Will mark brainliest***

Plz help me Will mark brainliest