2 years ago

Can someone help me here

Mathematics

1 answer:

Andrew [12]2 years ago

4 0

Answer:

Step-by-step explanation:

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Red and grey bricks were used to build a decorative wall. The number of red bricks and grey bricks was 5/2. There were 140 brick

ozzi

Answer:

100 red bricks

Step-by-step explanation:

Let's say red bricks is equal to 5x

Gray bricks is equal to 2x

We have an equation

2x + 5x = 140

= 7x = 140

Divide through by 7 to get the value of x

X = 140/7

X = 20

Red bricks = 5(x)

= 5(20)

= 100

Gray bricks = 2(x)

= 2(20)

= 40

Therefore in conclusion the number of red bricks is 100.

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2 years ago

There are 10 balloons in an arrangement and 7 of them are red. What percentage of red balloons are in the arrangement?

jok3333 [9.3K]

Answer:

70% are red.

Step-by-step explanation:

Divide this: 7 divided by 10 equals 0.7

0.7 is 70% in percent

Please give me brainliest

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2 years ago

ANSWER QUICK HANKS I WILL GIVE BRAINLIEST

daser333 [38]

Answer:

2 2/9

Step-by-step explanation:

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2 years ago

Read 2 more answers

What is the slope of a line parallel to the line with equation 5x + 3y = 7?

weeeeeb [17]

Answer:

-5/3

Step-by-step explanation:

Parallel lines are lines which have the exact same slope but different y-intercepts. We can find the slope by converting to slope-intercept form, y=mx+b from standard form.

We convert by using inverse operations to isolate y.

5x+3y=7

5x-5x+3y=7-5x

0x+3y=-5x+7

3y=-5x+7

$\frac{3y}{3} =\frac{-5x+7}{3} \\y=\frac{-5}{3}x+\frac{7}{3}$ .

The slope is -5/3. SInce parallel lines have the same slope, the slope for a parallel line will be -5/3.

3 0

3 years ago

Did I get this right if not can you help me

Triss [41]

Answer:

it is correct :>

Step-by-step explanation:

<3hope it heps

4 0

2 years ago