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Arisa [49]
3 years ago
7

How do you solve 8x+3c=2200

Mathematics
1 answer:
GREYUIT [131]3 years ago
5 0
8x + 3c = 2200
11xc= 2200
2200÷11
200
200xc
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I have a question. In my class we are doing a new unit and I don't understand it. We are solving systems of equations by graphin
tester [92]
You'd do x+x, y+(-y), and 8+4. You'll get 2x+0=12.
X=6 and y=2
6 0
3 years ago
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Two similar triangles have a scale factor of 5:3. The perimeter of the larger triangle is 75 sq inches. What is the perimeter of
tekilochka [14]

Answer:

45 inches

Step-by-step explanation:

Create a proportion where x is the perimeter of the smaller triangle:

\frac{5}{3} = \frac{75}{x}

Cross multiply and solve for x:

5x = 225

x = 45

So, the perimeter of the smaller triangle is 45 inches

8 0
3 years ago
Jasmine's scores on the first 4 tests were 87%, 92%, 76%, and 89%.
Korvikt [17]

Answer:

<u>The minimum score Jasmine needs to make on the fifth test to ensure her average is at least 80% is 56%</u>

Step-by-step explanation:

This is the information provided to us to answer the question correctly:

  • Score 1st test = 87%
  • Score 2nd test = 92%
  • Score 3rd test = 76%
  • Score 4th test = 89%
  • Score 5th test = x

Now, let's calculate the average of Jasmine's scores and to solve for x:

(87 + 92 + 76 + 89 + x)/5 ≥ 80

(344 + x)/5  ≥ 80

344 + x  ≥ 80 * 5

344 + x  ≥ 400

x ≥ 400 - 344

<u>x ≥ 56</u>

3 0
3 years ago
Read 2 more answers
If x= -8 and y=-4​, evaluate the expression.<br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7B3x-4%7D%7By-3%7D" id="TexFormula1"
bagirrra123 [75]

Your answer would be 4.

If we substitute in x = -8 and y = -4 into the expression, we get:

\frac{3(-8) - 4}{-4 - 3}

This then becomes:

\frac{-24 - 4}{-7} = \frac{-28}{-7} = 4.

I hope this helps!

6 0
3 years ago
Which second degree polynomial function f(x) has a lead coefficient of 3 and roots 4 and 1?
Stella [2.4K]

Answer:

f(x) = 3x² - 15x + 12

Step-by-step explanation:

Given f(x) has roots x = a and x = b, then

(x - a) and (x - b) are the factors

f(x) is then the product of the factors

f(x) = a(x - a)(x - b) ← where a is a multiplier

Given roots are x = 4 and x = 1, then

(x - 4) and (x - 1) are the factors

With a = 3, then

f(x) = 3(x - 4)(x - 1) ← expand factors using FOIL

     = 3(x² - 5x + 4) ← distribute

     = 3x² - 15x + 12

7 0
3 years ago
Read 2 more answers
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