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3 years ago

4. A parking lot contains 21 sedans. Sedans are found at a ratio of 7:5 to SUVs in the parking lot. How many

Mathematics

1 answer:

Mice21 [21]3 years ago

6 0

Answer:

they are both divisible by 3

7 x 3 = 21

5 x 3 = 15

Step-by-step explanation:

hope this helps lucas (mr. calvelo)

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How do I know that the following equation is true:

PSYCHO15rus [73]

Answer:

<u>Half angle Identity for cosine</u>:

$\cos \left(\frac{\theta}{2} \right)=\pm \sqrt{\frac{1+\cos(\theta)}{2} }$

$\text{Note that it is} \pm \text{because we don't know which Quadrant the half-angle is, }$ $\text{the information of}\cos(\theta) \text{is not enough to conclude the angle}$

$\frac{\pi}{8} \text{ is a Quadrant I angle, therefore, positive}$

$\cos \left(\frac{\pi}{8} \right)=\sqrt{\frac{1+\cos(\frac{\pi}{4} )}{2} }$

The equation is true.

4 0

4 years ago

An account pays 7% per year simple interest. In year 1, the amount in the account is $950. How much is in the account in year 6?

Maru [420]

There are 5 more payments of interest
= 5 * 0.07 * 950 = 332.5
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6 0

3 years ago

Read 2 more answers

The angles represented by the expressions (2x+46) and (3x-6) are complementary angles. find the measure of the larger angle. Im

vagabundo [1.1K]

Answer:

2× +46 + 3×-6 =90

sx+40=90

5X=90-40

x=50/5

X=10

frist angle= 2×10+46= 66

secnd angle= 90- 66 = 2 4

4 0

3 years ago

Lamar sold t-shirts and hats at a festival. He made a $4 profit for each t-shirt he sold. he also made a profit of $34 from sell

galben [10]

Answer:

18 t-shirts.

Step-by-step explanation:

Trey made a total profit $106 by selling t-shirts and hats. $34 of that profit was from selling hats, subtract 34 from 106 and you will get 72. So he made a profit of $72 in selling t-shirts. The t-shirts were $4 each, so if you divide 72 by 4 you will get 18. Meaning he sold 18 shirts.

3 0

3 years ago

7. If the concert handed out 208 wands and some wands were red wands and some were green wands. The ratio of red wands to green

umka21 [38]

Answer:

red = 52

Green = 156

Step-by-step explanation:

The 208 has to be divided by 4.

Three wands = 3 parts

The read wands = 1

3x + x = 208 Combine terms

4x = 208 Divide by 4

x = 208/4

x = 52

Now the red wands = 52

The Green wand<u>s =156</u> (3 times 52)

Total 208 Just as it should

4 0

3 years ago