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kondaur [170]
3 years ago
9

If y varies directly as x, and y = 75 when X = 25. Find x when y=21 PLEASE HELP ASAP

Mathematics
1 answer:
user100 [1]3 years ago
6 0
I think x would equal 7 because when y=75 and x=25, x is one third of y so one third of 21 is 7
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store announced that their $500 appliances were on sale for $475 what is the percent discount on the appliances
Aleks04 [339]

Answer:

We are given that a store announced that their $500 appliances were on sale.

The price of the appliances after discount is $475.

We are required to find the percent discount on the appliances.

To find the percent discount, we have to use the below formula:

\frac{(Actual-discounted)}{Actual} \times 100\%

\frac{500-475}{500}\times 100\%

\frac{25}{500} \times 100\%

0.05 \times 100\%

5\%

Therefore, the percent discount on the appliances is 5%


6 0
3 years ago
Helpp ill mark u as brainlist​
bulgar [2K]
C is the only one that makes sense to me try and let me know
5 0
3 years ago
Find f(-3) for f(x) = 4(2)^x.<br> ОА. 1/8<br> O B. -32<br> O C. -24<br> OD. 1/2
Ipatiy [6.2K]

Answer:

D

Step-by-step explanation:

using the rule of exponents

a^{-m} = \frac{1}{a^{m} }

substitute x = - 3 into f(x)

f(- 3) = 4((2)^{-3} = 4 × \frac{1}{2^{3} } = 4 × \frac{1}{8} = \frac{1}{2}

5 0
2 years ago
An elevator starts at floor 5. It goes up 6 floors twice, and then it goes down 8 floors. A second elevator
omeli [17]

Answer:

Part 1 is ELevator 2 because elevator one ends on floor 9 and elevator 2 ends on floor 23. Part 2 is Elevator 1 ends on floor 9 and Elevator 2 ends on floor 23.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Show you work! Giving lots of points for great explained answer!
Alja [10]

Answer:

If Kristen were to make 4 batches, and each batch requires 2 cups of flour, how many cups of flour would she need? To solve this question, we would just multiply 4 by 2, which gives us a final product of 8.

Similarly, in this question, if one batch requires 1 3/4 cups of flour and Kristen wants to bake 3 1/2 batches, she would need 1 3/4 x 3 1/2 cups of  flour.

1 3/4 can be rewritten as an improper fraction- 7/4.

3 1/2 can also be rewritten as an improper fraction- 7/2.

Multiplying 7/4 and 7/2, we obtain a final product of 49/8, or 6 1/8.

This means, Kristen will need 6 1/8 cups of flour to make 3 1/2 batches, and her belief that she needs 3 3/8 cups of flour is wrong, as she needs  a lot more than that.

Hope this helps!

8 0
3 years ago
Read 2 more answers
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