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Brut [27]
3 years ago
6

What is -15x=-240?????????

Mathematics
2 answers:
NikAS [45]3 years ago
8 0
Hey!


To solve this problem we'll divide both sides by -15. Doing this will get x on its own.

<em>Original Equation :</em>
-15x = 240

<em>New Equation {Changed by Dividing Both Sides by -15} :</em>
\frac{-15x}{-15} = \frac{-240}{-15}

Alright, now we simplify solve the equation.

<em>Old Equation :</em>
\frac{-15x}{-15} = \frac{-240}{-15}

<em>Solved {Old Equation Solved} :</em>
x = 16

<em>Now we know that in the equation -15x = -240,</em>  x = 16.

Hope this helps!


- Lindsey Frazier ♥
Vlad [161]3 years ago
4 0
You divide -15 on both sides to keep the x alone
-240/ -15=16
A negative divided by a negative is a positive so x=16
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Answer:

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Step-by-step explanation:

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In ABC, if CB AC≅ , m∠A = 3x + 18, m∠B = 7x – 58, and m∠C = 2x – 8, find x and the measure of each angle.
lesya692 [45]

9514 1404 393

Answer:

  x = 19

  A = 30°

  B = C = 75°

Step-by-step explanation:

In an isosceles triangle, the angles opposite the congruent sides have the same measures.

  A = B

  3x +18 = 7x -58

  76 = 4x . . . . . . . . add 58-4x

  19 = x . . . . . . . . . divide by 4

Then the equal angles measure ...

  A = B = 3(19) +18 = 75

  C = 2(19) -8 = 30

Angles A, B, C measure 75°, 75°, 30°, respectively.

_____

<em>Alternate solution</em>

The sum of angles in a triangle is 180°, so you could write ...

  (3x +18) +(7x -58) +(2x -8) = 180

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6 0
3 years ago
a student Miss 10 problems on an English test and received a grade of 44%. If all the problems were of equal value, how many pro
eimsori [14]

Answer:

Rounded to the nearest integer, the test had 18 problems in all.

Step-by-step explanation:

Given that a student missed 10 problems on an English test and received a grade of 44%, if all the problems were of equal value, to determine how many problems were on the test the following calculation must be performed:

100 - 44 = 56

56 = 10

100 = X

100 x 10/56 = X

1,000 / 56 = X

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Thus, rounded to the nearest integer, the test had 18 problems in all.

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Question 3 (2 marks)
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Step-by-step explanation:

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4.5% = 1% × 4.5 = 670 × 4.5 = $3015

so, he gets $370 + $3015 = $3385 per week

7 0
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Maslowich

Answer:

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So, this new drink has 58.5 mg of vitamin

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4 years ago
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