3 years ago

30 PTS!! URGENT JUST 3 QUESTIONS PLEASE

Mathematics

1 answer:

Harrizon [31]3 years ago

4 0

Answer:

1. 7

2. B

3. C

Step-by-step explanation:

hope its right

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Laura will go for a run during her lunch break if the temperature is between 6 0 ? F 60 ? F and 8 0 ? F 80 ? F. The average spee

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Answer:

$D(t)=3 \frac{miles}{hour} +0.05*\frac{miles}{hour*F}(80F-t)$

Step-by-step explanation:

The average speed in function of the temperature:

$S(t)=6 \frac{miles}{hour} +0.1*\frac{miles}{hour*F}(80F-t)$

The distance in function of the average speed:

$D(x)=0.5*x$

x and S are the same

$D(t)=0.5*[6 \frac{miles}{hour} +0.1*\frac{miles}{hour*F}(80F-t)]$

$D(t)=3 \frac{miles}{hour} +0.05*\frac{miles}{hour*F}(80F-t)$

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4 years ago

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there are 15 cards , numbered 1 through 15 , if you pick a card what is the probability that you choose an odd number or a two

Paul [167]

I think the probability of picking an odd number is 7/15

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3 years ago

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Devi has a grid in the shape of a parallelogram. She has equilateral triangles with an area of 40 square millimeters that fit on

Ludmilka [50]

The area of the parallelogram is 26 × 10 = 260 cm^2 ;
The area of equilateral triangle is 0.4 cm^2 ;
<span>The </span>number<span> of triangles can Devi fit on the gris is 260 ÷ 0.4 = 260 × ( 10 / 4 ) = 2600 / 4 = 650 ;</span>

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4 years ago

Use the graph to estimate the solution of the system.

Svetllana [295]

Answer:

1. 0 and 1

2. about 0.6

3. 2 and 3

4. about 2.2

Step-by-step explanation:

Took the assignment

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4 years ago

Katie is selling lemonade for $1.50 per cup. She decides to put them on sale for $0.90. What percent discount did she give on he

Colt1911 [192]

Answer:

40%

Step-by-step explanation:

1.50 - 0.90 = 0.60

0.60 cents are saved.

$\frac{0.60}{1.50} = 0.4$

0.4 = 40%

hope this helps :)

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2 years ago