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3 years ago

The graph below shows the average daily temperatures on January 1 from 1900 to 1934 for city A.

Mathematics

1 answer:

exis [7]3 years ago

5 0

22,25,27 there are multiple questions that have the same question but different answers on Edge.

In this case it would be 25.

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Solve the inequality algebraically. Graph the solution.

kotykmax [81]

Don't be afraid of the inequality signs. pretend like it is an equal sign until you get your answer. then just switch the signs

8 0

3 years ago

There were 72 runners to start a race. in the first half of the race, 13 of them dropped out. in the second half of the race, 23

Mariana [72]

All you would need to to is do 13+23= 33 to get the total amount of people who dropped out, then do 72 ( the number in the beginning and subtract 33 from it because those are the people who dropped out so 72-33=39. 39 people finished the race.

8 0

3 years ago

The focal length F of a lens made by combining two lenses of focal length U and V is given I/F=I/U+I/V

jolli1 [7]

Answer:

a). $V=\frac{U.F}{U-F}$

b). V = 15 units

Step-by-step explanation:

Focal length F of a lens made by combining two lenses of different focal lengths U and V will be,

$\frac{1}{F}=\frac{1}{U}+\frac{1}{V}$

A). By solving the given formula,

$\frac{1}{V}=\frac{1}{F}-\frac{1}{U}$

$\frac{1}{V}=\frac{U-F}{U.F}$

$V=\frac{U.F}{U-F}$

B). If F = 6 and U = 10 then we have to find the value of V.

By substituting the given values in the formula,

$V=\frac{6\times 10}{10-6}$

$V=\frac{60}{4}$

V = 15 units

Therefore, focal length (V) of the lens = 15 units

4 0

4 years ago

Cost to store, 20$, markup 15%

tiny-mole [99]

There are 2 ways to do this....

(1) 20(1.15) = 23

(2) 20 + 0.15(20) = 20 + 3 = 23

6 0

4 years ago

The difference between a number and seven is less than or equal to -3.

ikadub [295]

Answer:

n ≤ 4

Step-by-step explanation:

"The difference between a number and seven is less than or equal to -3" translates into n - 7 ≤ -3. To solve, isolate the variable n.

n - 7 ≤ -3

n ≤ -3 + 7

n ≤ 4

5 0

3 years ago