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ivann1987 [24]
2 years ago
12

For the past three months, Grace used her cell phone for 43 minutes, 62 minutes, and 57 minutes how many minutes would she have

to use her cell phone this month for the average usage over the four months to be 55 minutes
Mathematics
1 answer:
mina [271]2 years ago
8 0

Answer:1

Step-by-step explanation:

Her average over those three months already is 54 so she has and average on 1 min left

You might be interested in
21x =7?<br> A. x=3<br> B. None of these <br> C. x=147<br> D. x=28
Varvara68 [4.7K]

Answer: B

Step-by-step explanation:

To isolate x, you divide both sides by 21

21x=7

\frac{21x}{21}=\frac{7}{21}

x = 7/21

Simplify by dividing both the numerator and denominator by 7

x = 1/3

Since, 1/3 is not an option, B is the correct answer

6 0
2 years ago
Write an equivalent expression of -2(1.5h+5)-4(-0.5+3h) without parenthesis
ryzh [129]

The equivalent expression to given expression is: -15h-8

Step-by-step explanation:

We can simplify the given expression to find an equivalent expression.

Given expression is:

-2(1.5h+5)-4(-0.5+3h)

So by using distributive property

=-3h-10+2-12h\\=-15h-8

Hence,

The equivalent expression to given expression is: -15h-8

Keywords: Equivalent expressions, Polynomials

Learn more about polynomials at:

  • brainly.com/question/10552347
  • brainly.com/question/10570041

#LearnwithBrainly

8 0
2 years ago
Perpendicular Lines please help me guys I'm lostt
mamaluj [8]
9 = 2(6) - b
9 = 12 - b
-3 = b
4 0
3 years ago
P what equation in slope-intercept form represents the line that passes through the points (3,5) and (-9,2)
ivanzaharov [21]

Answer:

y =\frac{1}{5}x+\frac{22}{5}

Step-by-step explanation:

To write the equation of a line, use the slope formula to first find the slope.

m=\frac{y_2-y_1}{x_2-x_1}=\frac{5-2}{3--9}=\frac{3}{3+12}=\frac{3}{15}=\frac{1}{5}

Substitute m=1/5 and the point (3,5) into point slope formula.

y-y_1 = m(x-x_1)\\y-5=\frac{1}{5}(x-3)\\y-5=\frac{1}{5}x -\frac{3}{5}\\y =\frac{1}{5}x+\frac{22}{5}

3 0
3 years ago
Round off then estimate 18.9*5.2
Nataly [62]
18.9 rounded is 19
5.2 rounded is 5

19 * 5 = 95
7 0
3 years ago
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