3 years ago

What is the value of b?

Mathematics

1 answer:

choli [55]3 years ago

8 0

The answer is B (-1)!

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Jessica painted 3/4 of a room in 3/5 of an hour. How long will it take Jessica to paint the entire room?

Snezhnost [94]

Answer:

8/10 hours or 48 minutes.

Step-by-step explanation:

State the problem as a rule of 3:

3/4 room --------- 3/5 hours

1 room ------------ x

$x=\frac{(1room*\frac{3}{5} hours)}{\frac{3}{4}room}$

x= 0.8 hours.

• How much is 0.8 hours in minutes?

0.8 * 60 = 48 minutes.

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1 year ago

A university's freshman class has 5000 students. 50% of those students are majoring in Computer Science. How many students in th

Mazyrski [523]

2500 students are computer science majors

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3 years ago

Answer question in image attached :) 20 points ! I think it is 2/4 just not 100% sure :/

sergiy2304 [10]

Answer:

$\sf \dfrac{BC}{BD} = \dfrac{2}{4}$

Explanation:

BD distance is 4 units

BC distance is 2 units

so in fractions:

$\sf \dfrac{BC}{BD} = \dfrac{2}{4}$

$\sf \dfrac{BC}{BD} = \dfrac{1}{2}$

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2 years ago

Read 2 more answers

A basket of laundry is being separated. Divide 48 pieces of clothing into 2 groups so that the ratio is 1:3

Alla [95]

Ratio is 1:3.....added = 4

1/4(48) = 48/4 = 12
3/4(48) = 144/4 = 36

the 2 groups will be 12 and 36

5 0

3 years ago

Use a negative factor to factor the expression - 7a+49b - 35

Helen [10]

Answer:

using a negative facto to factor the expression will be:

- 7a+49b - 35 = -7(a-7b+5)

Step-by-step explanation:

Given the expression

- 7a+49b - 35

Rewrite -35 as 5 · 7

Rewrite 49 as 7 · 7

= -7a + 7 · 7b - 5 · 7

as -7 is the common factor, so factoring out

= -7(a-7b+5)

Thus, using a negative facto to factor the expression will be:

- 7a+49b - 35 = -7(a-7b+5)

6 0

3 years ago