Angie wants to buy Christmas presents for all 7 of

Mathematics

1 answer:

stepan [7]3 years ago

8 0

Answer:

$33.25

this is your answer because you multiply $4.75 times 7 friends and get a total of $33.25

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3. Theresa has 20 coins that are dimes and quarters. Together

KiRa [710]

Answer:

15 dimes
5 quarters

Step-by-step explanation:

Let q represent the number of quarters Theresa has. Then the value of her coins is ...

0.25q + 0.10(20 -q) = 2.75

0.15q = 0.75 . . . . . . . . . subtract 2.00, collect terms

q = 0.75/0.15 = 5

Theresa has 5 quarters and 15 dimes.

3 0

4 years ago

Roberto's toy car travels 600 inches at high speed and then another 456 inches at low speed. What is the total distance the car

Aleks04 [339]

600 + 456 = 1,056in

12 inches = 1 foot

1,056/12 = 88

The car would have travel 88 feet.

5 0

3 years ago

Need help plz plz you will get rewarded need this answer by 3:37 only 5 mins plz plz pL is this correct

Hunter-Best [27]

Answer:

Your answers are correct!!! I just cant see the top as i told u in the details place....

Please brainlest...

Step-by-step explanation:

5 0

3 years ago

The point (1, −1) is on the terminal side of angle θ, in standard position. What are the values of sine, cosine, and tangent of

Lilit [14]

Check the picture below.

$\bf (\stackrel{a}{1}~,~\stackrel{b}{-1})\qquad \impliedby \textit{let's find the hypotenuse} \\\\\\ \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies c = \sqrt{a^2+b^2} \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases} \\\\\\ c=\sqrt{1^2+(-1)^2}\implies c=\sqrt{2} \\\\[-0.35em] ~\dotfill$

$\bf sin(\theta ) \implies \cfrac{\stackrel{opposite}{-1}}{\stackrel{hypotenuse}{\sqrt{2}}}\implies \cfrac{-1}{\sqrt{2}}\cdot \cfrac{\sqrt{2}}{\sqrt{2}}\implies -\cfrac{\sqrt{2}}{(\sqrt{2})^2}\implies -\cfrac{\sqrt{2}}{2}$

$\bf cos(\theta ) \implies \cfrac{\stackrel{adjacent}{1}}{\stackrel{hypotenuse}{\sqrt{2}}}\implies \cfrac{1}{\sqrt{2}}\cdot \cfrac{\sqrt{2}}{\sqrt{2}}\implies \cfrac{\sqrt{2}}{(\sqrt{2})^2}\implies \cfrac{\sqrt{2}}{2} \\\\\\ tan(\theta ) = \cfrac{\stackrel{opposite}{-1}}{\stackrel{adjacent}{1}}\implies tan(\theta ) = -1$