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3 years ago

PLEASE HURRY!!

Mathematics

1 answer:

Ksivusya [100]3 years ago

5 0

Multiple the number of toys bought by c to equal the total spent:

A) 7c = $22.75

B) divide the total spent by the quantity bought:

C = 22.75/7

C = 3.25

Each toy cost $3.75

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Currently the exchange rate between the US Dollar and the Euro is 1 USD = .85 Euro. If you bring $150 to Ireland with you, how m

vesna_86 [32]

Answer:

127.50 euros

Step-by-step explanation:

In order to do this you can just multiply 150 by .85 to find the amount of euros you would get for it.

Hope this helped!

7 0

3 years ago

HELP <3 Match the expressions with their solutions.

densk [106]

Answer:

1 ) sin 165°

2 ) cos 330°

3 ) Tan 157.5°

4 ) $sin^2 157.5$

Step-by-step explanation:

1 )

Given expression is $\sqrt{\frac{1-cos330}{2} }$

We know that $cos2x=1-2sinx^{2}$

$sinx^{2}=\frac{1-cos2x}{2}$

$(sinx/2)^2=\frac{1-cosx}{2}$

So the first expression is sin (330/2)° =sin 165°

2 )

GIven expression is $1-2sin^2165$

We know that $cos2x=1-2sinx^{2}$

So the result is cos 330°

3 )

Given expression is $\frac{1-cos 315}{sin315}$

We know that $cos2x=1-2sinx^{2}$

Also we know that sin2x = 2sinxcosx

So The numerator becomes $2sin^2x/2$ . and the denominator becomes as $2sinx/2cosx/2$

$\frac{2sin^2x/2}{2sinx/2cosx/2}=tanx/2$

So the result is Tan 157.5°

4 )

Given expression is $\frac{1-cos 315}{2}$

We know that $cos2x=1-2sinx^{2}$

$(sinx/2)^2=\frac{1-cosx}{2}$

So the result is $sin^2 157.5$

6 0

3 years ago

Determine whether the graph shows a positive correlation, a negative correlation, or no correlation. If there is a positive or n

tia_tia [17]

Answer:

Positive correlation.

Step-by-step explanation:

The miles per hour increases as the cycling speed increases.

7 0

3 years ago

Quick! Will give brainliest!

geniusboy [140]

Answer:

1 gallon and 1 pint

Step-by-step explanation:

I guess that the actual amount of water needed per player is 1/8 of gallon and not 18 gallons.

You will need to bring 9 x 1/8 = 9/8 = 1 ¹/₈ gallons or 1 gallon and 1 pint

1 gallon = 4 quarts = 8 pints = 16 cups = 128 ounces

1 gallon = 3.785 liters

The US is one of the few countries (along with Liberia, and Myanmar) that still uses the imperial system to measure things, e.g. inches, feet, yards, pounds, miles, pints, gallons, etc. The rest of the world uses the metric system, e.g. meters, liters, kilograms, etc.

4 0

3 years ago

Read 2 more answers

A car rental agency charges $75 per week plus $0.25 per mile to rent a car.

Natali5045456 [20]

a. $0.25x+75

b. $0.25+75=100; 100-75=25 25/0.25=100 so you drove 100 miles

c. y= 100 miles

5 0

2 years ago