Please help me with math, worth 10 points! :D

Answers

Answer 1

Answer: Distribute:5x+20-4x=18-23simplify:1x+20=-5subtract 20:1x=-25Answer x=-25

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How do answer this ?

Answers

1) the x-axis is the number of hours ; the y-axis is the number of miles

2) the x-axis is the number of minutes; the y-axis is number of gallons

What is even the question

44.4 square feet and its height is 7.4 feet

Answers

b=area/height b=44.4/7.4= 6 b=6 :)

First you have to notice which is which, then you divide 44.4 by 7.4 to get 6. 6 is your answer. Hope this helps.

Please help! What is the value of B in the following proportion? 11/12 = B/156
A. 24
B. 143
C. 134
D. 170

Answers

Answer:

B. 143

Step-by-step explanation:

11 b

----- = -------

12 156

using cross products

11 * 156 = 12 b

divide by 12

11 * 156/12 = b

11 * 13 = b

143 = b

B.143

step by step:
$(11)/(12) = (b)/(156)$
use cross multiplication
$12 * b = 11 * 156$
$12b = 1716$
divide both sides by 12
$(12b = 1716)/(12)$
$b = 143$

an electronics store sold 96 tv's in january. if they sold 25% fewer in february, how many tv's did the store sell in february?

Answers

Answer:

Step-by-step explanation:

96 is 100%

100%-25%=75%

75÷100=0.75

0.75×96=72

24 because when using percentage you want to multiple . In front of it for example with this problem 96 X .25

What is the h.c.f of 124 and 112

Answers

112 = 24 * 7
124 = 22 * 31
Take all the common prime factors, by the lowest powers.
gcf, gcd (112, 124) = 22 = 4

How do you simplify -2( -1 - w )

Answers

Distribute:
2-2x-w

regroup terms:
2-(-2w)

simplify brackets:
2+2w

-2(-1-w)
-2(-1)-2(-w)
2*1+2w
2+2w