To find that you would do (such that x is the unknown) 3x+5(x+2)=106
and if you do this you will find that x=12

so the two numbers you are looking for are 12 and 14

4 0

2 years ago

What is the value of 5n-3 when n=5?

joja [24]

Answer:

Step-by-step explanation:

We are given the expression:—

$\displaystyle \large{5n-3}$

When n = 5, substitute/change n to 5:—

$\displaystyle \large{5(5)-3}$

Evaluate:—

$\displaystyle \large{25-3=\boxed{22}}$

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Summary

Substitution

Changing or replacing from a term to another terms/expression is called substitution.

Examples:—

If we are given the expression $\displaystyle \large{2y-1}$ and we want to find the value when y = 4, simply replace y-term to 4.

$\displaystyle \large{2(4)-1=8-1=\boxed{7}}$

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If you have any doubts regarding my answer/explanation, do not hesitate to ask in comment!

8 0

1 year ago

tony spent $60.54 and bought 3 packs of notebooks and a calculator. how much does a pack of notebooks cost if a calculator costs

Amiraneli [1.4K]

First you need to find out the remaining value after he bought the calculator this would be 14.67.

60.54 - 45.87= 14.67

Next youll assume the packs of notebooks all cost the same and divide by 3

14.67 / 3 = 4.89

He spent 4.89 on one pack of notebooks

6 0

2 years ago

What graph shows a rate of $7.50 per hour

liraira [26]

Answer:

we can't see the graph

Step-by-step explanation:

gdhdhd

4 0

2 years ago