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Orlov [11]
3 years ago
13

If y=-3x + 2, find x when y= -13 *

Mathematics
1 answer:
Arturiano [62]3 years ago
7 0

Answer:

x = 5

Step-by-step explanation:

You know what "y" equals, so you just need to insert the value into the equation, then solve for "x".

-13 = -3x + 2

-13 - 2 = -3x

-15 = -3x

5 = x

x = 5

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Tyler fills up his tank with 12 gallons of gas. If one trip, on average,takes 1/2 gallon of gas, how many trips will the Tyler b
Bingel [31]
24
Since each trip takes half a gallon of gas, you divide the amount of gas by how much per trip.
That gives you 24 trips he can make with the gas.
7 0
3 years ago
The cost (in dollars) of a custom made sweatshirt is represented by 3.5n +29.99, where n is the number of different colors in th
juin [17]

Answer:

52.5n+449.85

Step-by-step explanation:

The cost is given for <em>1 sweatshirt</em>. To find the cost of 15 sweatshirts, we need to multiply the expression by 15. Let's do this:

15(3.5n+29.99)\\=15(3.5n+29.99)\\=15(3.5n)+15(29.99)\\=52.5n+449.85

This is the expression that represents the cost of 15 sweatshirts.

8 0
3 years ago
Question is in picture
stiv31 [10]

Answer:

27.5

Step-by-step explanation:

pythagorean theorem. a^2+b^2=c^2.

so 12^2+b^2=30^2

meaning 144+b^2=900

900-144=756

square root 756

b=27.5

5 0
3 years ago
The swimsuit is on sale for 25% off its original price. If the original price was $58. What is the sale price?
sergiy2304 [10]

58.00 \div 10 \times 2 \div 2 \div 2
7 0
3 years ago
Your friend Michelle just graduated and has two job offers that she is considering. Both job offers pay the same, but JobA
just olya [345]

Money offered to Michelle per annum in Job A = $1700

Number of years she will work in job A = 5

Percentage of earnings per annum for her retirement plan = 6.60%

Money she will earn will be the simple interest at the end of 5 years.

We know that :

\color{plum}{ \tt{Simple \:  interest  =  \frac{Principle  \ \: \times  \: Rate  \:  \: \times \:  \:  Time}{100} }}

Principal = $1700

Rate = 6.60%

Time = 5 years

Which means :

=  \frac{1700 \times 6.60 \times 5}{100}

=  \frac{56100}{100}

= \color{plum}\$561

We also know that :

\color{plum}\tt \: Amount = Principal + Interest

Amount Michelle will earn at the end of 5 years for her retirement plan :

= 1700 + 561

=\color{plum}\bold{\$ 2261}

2261 can be rounded off to 2260.

Therefore, Michelle will earn <u>$2260</u> at the end of 5 years for her retirement plan.

5 0
3 years ago
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