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3 years ago

What value for A makes this equation true? 4 • 48 = (4 • 40) (4 • B)

Mathematics

1 answer:

Katena32 [7]3 years ago

4 0

$4\cdot48=(4\cdot40)(4\cdot B)\\
192=160\cdot4B\\
640B=192\\
B=\dfrac{192}{640}=\dfrac{3}{10}

$

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5 less than a number y is under 20.

klio [65]

Answer:

y - 5 < 20

y < 25

Step-by-step explanation:

y - 5 < 20

y < 25

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3 years ago

When planning a date night, you have a choice of 2 types of restaurants: pizza (P) or barbeque (B); a choice of 3 types of movie

enot [183]

Answer:

$S = \{PRC, PRI,PAC,PAI,PDC,PDI,BRC, BRI,BAC,BAI,BDC,BDI\}$

Step-by-step explanation:

Given

$Restaurant = \{P,B\}$

$Movies = \{R,A,D\}$

$Post-movie = \{C,I\}$

Required

List out the sample space

To do this, we simply pick 1 item in each category, without repetition.

So, we have:

$S = \{PRC, PRI,PAC,PAI,PDC,PDI,BRC, BRI,BAC,BAI,BDC,BDI\}$

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2 years ago

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den301095 [7]

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8 0

3 years ago

Read 2 more answers

Using the formula find the slope of a line with the points (10,20) and (30,50).

VARVARA [1.3K]

Answer:

m = 2/3

Step-by-step explanation:

Slope is defined as the ratio rise/run.

As we move from (10, 20) to (30, 50), the run is 30 - 10, or 20, and the rise is 50 - 20, or 30. Thus, the slope of the line is m = 30/20, or 2/3.

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2 years ago

Mrs. Lewis had $100 to purchase school supplies for her class. She bought 40 glue sticks and 40 boxes of crayons. Each glue stic

Bess [88]

Mr. Lewis | 100$
Glue = 1.50$ (x40)
Box = 0.89$ (x40)

1.50 x 40 = 60$
0.89 x 40 = 35,6$
Total spend (95,6$)

100 - 95,6 = 4,4$

Answer: 4,4$

8 0

2 years ago