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3 years ago

-2(7 – y) +4= -4 How do you solve this

Mathematics

2 answers:

finlep [7]3 years ago

5 0

The answer to this question is y=3

geniusboy [140]3 years ago

4 0

-2(7-y)+4=4
-14+2y+4=4 Distribute
-10+2y=4 Combine like terms
2y=14 Get the variable on one side
7=y Get the variable alone

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Given f(x) = $(4 – x} , what is the value of F (16)?

stiks02 [169]

Step-by-step explanation:

Did you mean :

f(x) = 5(4 - x)

f(16) = 5(4 - 16)

f(16) = 5(-12)

f(16) = -60

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2 years ago

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What is the value of x in the equation 3x-5=1/2x+2x

creativ13 [48]

Answer:

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

3x−5=

x+2x

3x+−5=

x+2x

3x−5=(

x+2x)(Combine Like Terms)

3x−5=

Step 2: Subtract 5/2x from both sides.

3x−5−

x−

x−5=0

Step 3: Add 5 to both sides.

x−5+5=0+5

x=5

Step 4: Multiply both sides by 2.

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4 0

3 years ago

At 6:00 PM, a flagpole that is 35 feet tall casts a shadow that is 50 feet long. At the same time, how long will a person's shad

sertanlavr [38]

<u>Answer:</u>

The length of the person’s shadow is 5.7ft

<u>Explanation:</u>

Length of the flagpole =a= 35ft

Length of the shadow of the flagpole= b=50ft

Length of the person=c= 4ft

Suppose the length of the person’s shadow is=d

According to the rules of trigonometry

$\frac{\text { Length of the flagpole }}{\text { Length of the shadow of the flagpole }}=\frac{\text { Length of the person }}{\text { Length of the person's shadow }}$

$\frac{a}{b}=\frac{c}{d}$

$\frac{35}{50}=\frac{4}{d}$

35d=200

d= $\frac{200}{35}$

d=5.7ft

Hence, The length of the person’s shadow is 5.7ft.

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3 years ago