3 years ago

Help me with my math

Mathematics

1 answer:

aleksley [76]3 years ago

3 0

No nonononononononono

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The length of a rectangle is 4times the width. The perimeter is 90cm. Find the length and width

noname [10]

Length is 36 width is 9

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2 years ago

Mr. Brown shares with the class that 70% of the students got an A on the English vocabulary quiz. If Mr. Brown has 100 students,

mezya [45]

Answer:

a. $\frac{70}{100}$

b. 0.7

c. 0.7=70%= $\frac{70}{100}$

Step-by-step explanation:

70% of 100 received an A, that is 70/100 times 100 equal to 70

$\frac{70}{100}*100=70$

a. 70% = $\frac{70}{100}$

b. $\frac{70}{100}$ = 0.7

Notice that 70/100 is equal to 7/10 which is 0.7

c. 0.7=70%= $\frac{70}{100}$

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3 years ago

Three divided by four

muminat

Answer:

0.75

Step-by-step explanation:

3/4=0.75

Hope this helps! :)

8 0

2 years ago

X=-12-6y -4x+5y=-39 slove by the system of substitution

Artist 52 [7]

X = -6y - 12
4x + 5y =-39

4x + 5y = -39
-4(-6y - 12) + 5y = -39
-4(-6y) + 4(12) + 5y = -39
24y + 48 + 5y = -39
29y + 48 = -39
29y = -87
y = -3

x = -6y - 12
x = -6(-3) - 12
x = 28 - 12
x = 6

(x, y) = (6, -3)

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3 years ago

Solve for y. -5y = 60 Enter your answer in the box Y=

Airida [17]

Answer:

The answer is negative 12

Step-by-step explanation:

$- 5y = 60$

$\frac{ - 5y}{ - 5} = \frac{60}{ -5}$

$y = - 12$

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2 years ago