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MAVERICK [17]
3 years ago
7

Daniel is training for a marathon. Last week Daniel ran 3.5 miles in 30 minutes. This week he ran 8 miles in 1 hour 15minutes. C

ompare his rates for those two weeks.
Mathematics
1 answer:
Fantom [35]3 years ago
3 0
Oii mate it Daniel hope this helps
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Solve for the value of x 3x - 9 + 12 - 6x = -18
Daniel [21]

Answer:

x =7

Step-by-step explanation:

3x - 9 + 12 - 6x = -18

Combine like terms

-3x +3 = -18

Subtract 3 from each side

-3x +3 -3 = -18 -3

-3x = -21

Divide each side by-3

-3x /-3 = -21 /-3

x =7

8 0
3 years ago
Read 2 more answers
The sales tax rate is 8.75% and the sales tax is $15.75, what is the purchase price? (Round to the nearest cent.)
ivann1987 [24]
X= purchase price


Multiply purchase price by sales tax % to equal the amount of sales tax.

(8.75% * x)= $15.75
convert % to decimal (8.75% ÷ 100)

0.0875x= 15.75
divide both sides by 0.0875

x= $180.00 purchase price


ANSWER: The purchase price is $180.00 (to nearest cent).

Hope this helps! :)
4 0
3 years ago
A die is rolled. What is the probality of rolling a 2 or a 6
Jobisdone [24]

%33.33

or

2/6

Because there are 6 sides on a die, and you are given 2 possible sides to roll on. This leaves you with 2/6, which translated to a fraction is %33.33

7 0
3 years ago
A marine biologist wants to test the effect of water temperature on the length of time sea otters can remain under water during
atroni [7]

Answer:

0.4216

Step-by-step explanation:

from the data given The estimate of the standard deviation of the sampling distribution of b,

( The slope of the sample regression line for the relationship )

= 0.4216  (  i.e. intersection of SE coef and water temperature )

Testing the effect of water temperature on the length of time sea otters can remain

5 0
3 years ago
The pyramid shown has a square base that is 32 32 centimeters on each side. The slant height is 24 24 centimeters. What is the l
masha68 [24]
The answer is 3072 cm².

Lateral surface area of a pyramid can be expressed as:
L = P × l
where:
L - <span>Lateral surface area
P - Perimeter of a base
l - slant height

We have:
L = ?
P = ?
l = 24 cm
a = 32 cm

</span><span>Perimeter of a base which is a square is:
</span>P = 4 × a
P = 4 × 32 cm
P = 128 cm

Thus,
<span>L = P × l
</span>L = 128 cm × 24 cm
L = 3072 cm²

Therefore, <span>the lateral surface area is </span>3072 cm².
3 0
4 years ago
Read 2 more answers
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