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3 years ago

Write a proportion that could be used to solve for each variable. Then solve.

1 answer:

5 0

16 walls in 40 hours
3 walls in h hours

16/40 = 3/h

16h = 40(3)
16h = 120
h=120/16
h=7.5

answer: 3 walls in 7.5 hours

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Solve for x. x^2+12x<-11

sineoko [7]

x²+12x<-11

x²+12x+11<0

x²+12x+11=0

(x+11)(x+1)=0

x+11=0 x+1=0

x= -11 x= -1

Solution: ] -11 , -1 [

5 0

2 years ago

Is this statement true?

Svetradugi [14.3K]

Log^7(12)=log^7(2*2*3)=log^7(3)+log^7(2)+log^7(2)
so log^7(12)-log^7(3)=log^7(3)+log^7(2)+log^7(2)-log^7(3)
=log^7(2)+log^7(2)
true

7 0

3 years ago

It is 4 : 12 p.M. 4:12 p.M.4, colon, 12, start text, space, p, point, m, point, end text Emma's mom will be home from work in 70

Vaselesa [24]

Answer:

40 Minutes.

Step-by-step explanation:

The current time = 4:12 p.M.

Emma's mom will be home from work in 70 minutes.

70 minutes = 1 hour 10 Minutes= 1: 10 Hours

$\left\begin{array}{ccccc}&4&:&12 &p.m.\\+&1&:&10&\\--&--&--&--&--\\&5&:&22&p.m\end{array}\right$

Therefore, Emma's Mom will get home by 5: 22 p.m.

Emma has gymnastics lessons at 6 : 00 p.M.

To determine how much time Emma will have between the time that her mom gets home from work and the beginning of gymnastics lessons, we simply subtract 5:22 from 6.

$\left\begin{array}{ccccc}&6&:&00 &p.m.\\-&5&:&22&\\--&--&--&--&--\\&00&:&40&\end{array}\right$

Emma will have 40 Minutes.

5 0

4 years ago

When 3 is subtracted from one third of a number n the result is less than 6 which inequality and solution represent this situati

Tanya [424]

Answer:

1/3n-3<6

Step-by-step explanation:

"when 3 is subtracted from one third of a number n"

meaning: 1/3n-3

"the result is less than 6"

less than is <, so it'd be

1/3n-3<6

4 0

3 years ago

Read 2 more answers

(20 POINTS)

Xelga [282]

88 square feet and by the way your only giving 15 points step your game up

4 0

3 years ago