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Lostsunrise [7]
3 years ago
11

I really need help with 1 and 2 please help me

Mathematics
2 answers:
mariarad [96]3 years ago
5 0
For answer #1. just divide both numbers by 8.
Let's see:
400=8r
400/8=8r/8
400/8 equals 50
So, answer #1 is 50.

For answer #2, count the number of times it shows 5, then write that number on the top, in the right-hand corner.(or use an arrow to show it's going up)
Let's see:
5×5×5×5×5=5 times it shows 5
So, 5∧5 would be the answer.

AlekseyPX3 years ago
4 0
R=50 because 8×50=400 so that is what r would equal
The exponent would be 5 the fifth power, because since the number your using to multiply it by is 5 and you are multiplying is by 5 fives it would be 5 to the fifth power
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Write equations for the vertical and horizontal lines passing through the point (-4,-9).
Gnesinka [82]

Answer:

Below.

Step-by-step explanation:

These are perpendicular line which intersect at (-4, -9).

Vertical line is x = -4.

Horizontal lone is y = -9.

6 0
3 years ago
The area of a rectangle is 21cm?.
Ghella [55]

Answer: The answer is −  5  plus per centimeter

Hope this helps :)

5 0
3 years ago
1. Suzette ran and biked for a total of 44.75 mi in 4 h. Her average running speed was 6.5 mph and
Andru [333]

Suzette ran for 1.6 hours and biked for 2.4 hours.

Let x = total hours Suzette ran.

Let y = total hours Suzette biked.

The equation to solve the question will be:

x + y = 4 ...... i

6.5x + 14y = 44.75 ....... ii

From i, y = 4 - x

Put the value of y into equation ii

6.5x + 14y = 44.75

6.5x + 14(4 - x) = 44.75

6.5x + 56 - 14x = 44.75

Collect like terms

6.5x - 14x = 44.75 - 56

-7.5x = -11.25

x = 11.25/7.5

x = 1.6 hours

Since x + y = 4

1.6 + y = 4

y = 4 - 1.6

y = 2.4 hours.

Suzette ran for 1.6 hours and biked for 2.4 hours.

Read related link on:

brainly.com/question/24429956

6 0
2 years ago
Whats 8 8 8 in multiplication sentence
mixas84 [53]
It would be 8×8×8, you just add the multiplication sign
6 0
3 years ago
Riley is going snowboarding over the holiday break. To go snowboarding you have a one time fee of $75 to rent the snowboard equi
siniylev [52]

Answer:

y = 5x + 75

Step-by-step explanation:

"One time" = no change = constant

"per" = varies per person = variable

It is 5 dollars per ride, 5 dollars per x, 5x.

y = 5x + 75

6 0
3 years ago
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