3 years ago

What does x equal in 3x + 5 = -7

Mathematics

1 answer:

Stolb23 [73]3 years ago

6 0

Answer:-4

Step-by-step explanation:

Subtract 5 from each side, which leaves you with 3x=-12. Then divide each side by 3. Then that leaves you with x=-4

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I don’t understand this subject at all if you wold answer that would be a big help

Digiron [165]

Answer:

d= 8.6 ft

Step-by-step explanation:

In similar triangles, the corresponding sides are in proportion.

$\boxed{\dfrac{AW}{MZ}=\dfrac{AJ}{MJ}=\dfrac{WJ}{ZJ}}$

To find the value of x,

$\dfrac{AJ}{MJ}=\dfrac{WJ}{ZJ}\\\\\\\dfrac{6}{7}=\dfrac{d}{10}\\\\\\\dfrac{6}{7}*10=d$

d = 8.6 ft

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2 years ago

I’m about to cry from frustration. Help please before I die

kvv77 [185]

Answer:

$\frac{1}{3}x+16=37$

63 Jelly Beans

Step-by-step explanation:

The unknown is the number of jelly beans originally in the bag or x

First he had x jelly beans

The he ate one-third of them

$\frac{1}{3}x$

He then ate 16 more jelly beans

$\frac{1}{3}x+16$

This was equal to 37 jelly beans

$\frac{1}{3}x+16=37$

This is the equation

Now solve for x

Subtract 16 from both sides

$\frac{1}{3}x=21$

Multiply both sides by 3

$x=63$

63 Jelly Beans

7 0

3 years ago

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What’s the correct answer

s344n2d4d5 [400]

Substituting m for 9

h(9) = 9^2 - 3*9

h(9) = 81 -27

h(9) = 54

Third option!

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3 years ago

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Which of the following is the usually first step when using a general strategy for solving equations with fractions?

tester [92]

Answer:

A. multiply both sides by the LCD

Step-by-step explanation:

It helps cancel out fractions, making it easier to solve the equations

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3 years ago

What is the circumference of this circle, in centimeters? Use StartFraction 22 over 7 EndFraction for Pi.

yaroslaw [1]

Answer:

66 cm

Step-by-step explanation:

Diameter (d) = 21 cm

$C = \pi \: d = \frac{22}{7} \times 21 = 22 \times 3 = 66 \: cm$

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3 years ago

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