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belka [17]
3 years ago
7

20 Points!!! Pls help me out with this, and please no links.

Mathematics
2 answers:
lara [203]3 years ago
6 0

Answer:

7

Step-by-step explanation:

KIM [24]3 years ago
5 0

Answer: your answer is B

Step-by-step explanation:

Im so sorry if im wrong, have a good day!

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A row of plaques covers 120 square feet of space along a wall.If the plaques are 3 feet tall, what length of the wall do they co
seropon [69]

Area = Length x Width(height).

You are given the area and the width(height).

You can find the length by dividing the area by the width:


Length = 120 / 3 = 40 feet.



6 0
4 years ago
Jamal hiked on two trails. The first trail was 5 1/3 miles long and the second trail was 1 3/4 times as long as the first trail.
earnstyle [38]

Answer:

Jamal hiked = 44/3 miles

Step-by-step explanation:

Mixed numbers are given in this question which can be changed into fractions by multiplying the denominator by quotient and adding numerator to it.

Given that:

Length of first trail: 5 1/3 = (3*5 + 1)/3 = 16/3 miles

According to given condition:

Length of second trail: 1 3/4 * 16/3 = (4*1+3)/4 * 16/3 = 7/4*16/3

By simplifying:

Length of second trail = 28/3 miles

So the total miles Jamal hiked = 16/3 + 28/3

Jamal hiked = 44/3 miles

i hope it will help you!

4 0
3 years ago
Enter the statement, with the values in the same order, but with parentheses so that the statement is true. 9 × 4 − 4 × 5 + 12 ÷
Sever21 [200]
9(4-4) x (5+12)/4=28
6 0
3 years ago
Solve. x^2 8x 25 = 0
kykrilka [37]
This equation is unsolvable.
x^2+8x+16=0
(x+4)^2+9=0
(x+4)^2= -9
anything to the power of whatever has to be greater than -1, it means it can be 0 or more but never a negative number. If it is a negative number, then it is false.
6 0
4 years ago
Who Washes? Erica and Aaron, who are siblings, have decided to use a lottery system to decide who will wash dishes every night.
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Given that Erica and AAron,are using lottery system to decide who will wash dishes every night.

They put some red and blue power chips and draw each one.  If same colour, Aaron will wash and if not same colours Erica will wash

If the game is to be fair, then both should have equal chances of opportunity for washing.

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i.e. P(different chips) = P(same colour chips)

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Both are drawing at the same time.

Hence Prob (getting same colour) = (mC2+nC2)/(m+n)C2

Probfor different colour = mC1+nC1/(m+n)C2

The two would be equal is mC2 +nC2 = m+n

This is possible if mC2 =m and nC2 = n.

Or m = 2+1 =3 and n =3

That for a fair game we must have both colours to be 3.


3 0
3 years ago
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