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tresset_1 [31]
3 years ago
13

What are the steps to solve, 510=x+.21x-.19x

Mathematics
1 answer:
PtichkaEL [24]3 years ago
4 0

Answer:

500

Step-by-step explanation:

510=x+.21x-.19x

510=(1+.21-.19)X

510=1.02X

X=510/1.02

X=500

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Bess and Gina earn $45 per week for delivering flowers. Bess worked for x weeks and earned an additional total bonus of $20. Gin
Inessa05 [86]

Answer:

First option: 45x + 20 + 45y

Step-by-step explanation:

The missing options are:

45x + 20 + 45y\\65x + 45y\\45x - 20 + 45y\\\\45x + 65y

 We know that "x" represents the number of weeks Bess worked and "y" the number of weeks Gina worked.

According to the data  given in the exercise, Gina and Bess earn $45 per week for delivering flowers, this is:

45x+45y

Since earned an additional total bonus of $20, then the total money in  in dollars that Bess and Gina earned for delivering flowers can be shown with the following expression:

(45x+20)+45y=45x+20+45y

Notice that this expression matches with the one shown in the first option.

8 0
3 years ago
If the system below were written as a matrix equation, by which matrix could you multiply both sides to obtain a solution?
ludmilkaskok [199]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

Below are the choices:

A. 
<span>[8 -6] </span>
<span>[-5 4] </span>
<span>B. </span>
<span>[4 -3] </span>
<span>[-2.5 2] </span>
<span>C. </span>
<span>[-4 5] </span>
<span>[6 -8] </span>
<span>D. </span>
<span>[-2 2.5] </span>
<span>[3 -4]
</span>
B because it is the inverse of 
<span>(4 6) </span>
<span>(5 8) </span>

<span>Check </span>
<span>(4.0 -3)(4 6) = (1 0) </span>
<span>(-2.5 2)(5 8) = (0 1)</span>
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5 0
3 years ago
If (angle)1 = 7x and (angle)4 = 3x + 20, what is the value of x?
Semenov [28]
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x=5.
7 0
3 years ago
Read 2 more answers
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