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4 years ago

Fridays high tempature was -1c the low tempature was -5c what was the difference between the high and low temperatures

Mathematics

1 answer:

Elis [28]4 years ago

5 0

Since both temperatures were below zero ( both are negative numbers) all you need to do is subtract them:

5 - 1 = 4

The difference was 4 degrees.

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A store sells candy at $.50, $1, $1.50, $2, and $3 per kilogram. How many kilograms of each kind of candy does $3 buy?

evablogger [386]

Money : price = quantity

1) 3 : 0.5 = 6 Kg
2) 3 : 1 = 3 Kg
3) 3 : 1.5 = 2 Kg
4) 3 : 2 = 1.5 Kg
5) 3 : 3 = 1 Kg

8 0

3 years ago

A force of 12 lb is required to hold a spring stretched 8 in. beyond its natural length. How much work W is done in stretching i

sattari [20]

Answer:

Work done in stretching the spring = 7.56 lb-ft.

Step-by-step explanation:

Normal length of the spring = 8 in or $\frac{8}{12}$ ft

= $\frac{2}{3}$ ft

If the spring has been stretched to 11 inch then the stretched length of the spring is = 11 in

= $\frac{11}{12}$ ft

Force applied to stretch the spring = 12 lb

By Hook's law,

F = kx [where k is the spring constant and x = length by which the spring is stretched]

12 = k( $\frac{2}{3}$ )

k = 18

Work done (W) to stretch the spring by $\frac{11}{12}$ ft will be

W = $\int\limits^\frac{11}{12} _0 {kx} \, dx$

= $\int\limits^\frac{11}{12} _0 {(18x)} \, dx$

= $18[\frac{x^{2}}{2}]^{\frac{11}{12}}_0$

= 9( $\frac{11}{12}$ )²

= 7.56 lb-ft

6 0

3 years ago

Kyra was at soccer practice. she blocked 55% of the goals that were kicked at her during a team drill. ashley scored two of the

Minchanka [31]

Total kicks that were attempted = 40

Goals blocked by Kyra = 55%;

Goals which could not be blocked by Kyra = 100 - 55 = 45%

Goals made during team drill = 18

Let total kicks attempted be 'n';

Therefore;

(18/n) × 100 % = 45 %

18/n = 45/100;

n = 1800/45;

n = 40

To learn more about this; visit: brainly.com/question/18522423

#SPJ4

7 0

2 years ago

Simplify and evaluate without a calculator. 3*(m-4)-n*(m-4) if m=5 and n=3

Katarina [22]

Answer:

Step-by-step explanation:

3*(m-4)-n*(m-4) m = 5, n = 3

3*(5-4)-3*(5-4)

3*(1)-3*(1)

3-3

6 0

2 years ago

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John kept track of how many baskets were made in a basketball game. After 4 minutes, 5 baskets were made. How long did it take u

Rus_ich [418]

C 12 minutes is the correct answer. Hope this helps :)

8 0

4 years ago

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