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notsponge [240]
3 years ago
10

Two quantities, x and y, are directly proportional. If x is halved, what happens to y?

Mathematics
2 answers:
Contact [7]3 years ago
5 0
Y should also be halved.

For example, if x=4 and y=2, x=2y.
If x is halved for x=2, you get 2=2y, or y=1, which is still one half of x, so the proportion remains the same.
raketka [301]3 years ago
5 0

Answer:

y is also halved

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

so

If x increases then y increases

If x decreases then y decreases

therefore

If x is halved then y is also halved

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Using the approximation 3.14 for \pi what is the radius of a circle with circumference 75.4m
Charra [1.4K]

Answer:

The radius of the circle is 12.006 m.

Step-by-step explanation:

Let us assume the radius of the circle = r

Circumference  = 75.4 m

Now, CIRCUMFERENCE OF A CIRCLE = 2 π r

⇒ 75 .4 m = 2 π r

Now, putting  π = 3.14, we get:

75 .4 m = 2 (3.14)  r

⇒ 75.4 = 6. 28 r

or, r = 75.4/6.28 =  12.006

or, r  = 12.006 m

Hence, the radius of the circle with circumference 75.4 m is 12.006 m.

3 0
3 years ago
A clothing store sells a customer 3 T-shirts and 4 pairs of shorts for $83.
ss7ja [257]
3t + 4s = $83
4t + 1s = $50 (x 4)

16t + 4s = $200
3t + 4s = $83 (minus them£

13t = $117 (divide by 13)

t = $9

sub t into first equation.

3 x 9 = 27
27 + 4s = $83
4s = $56
s = $14

t = $9
s = $14
7 0
3 years ago
A textbook store sold a combined total of
omeli [17]
M+p=475
m=p-61
replace m in equation 1 with p-61: p-61+p=475
2p=475+61=536
p=268
m=207
8 0
3 years ago
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
Inessa [10]

Answer:

4.5 would be the answer

Step-by-step explanation:

3 0
2 years ago
Liz earns a salary of $2,500 per month, plus a commission of 6% of her sales. She wants to earn at least $2,900 this month. Ente
Kaylis [27]

Answer: the sales for the month must be greater than or equal to $6666.7

Step-by-step explanation:

Let x represent her sales for the month.

Liz earns a salary of $2,500 per month, plus a commission of 6% of her sales. If she makes sales worth $s for the month, then her commission for the month would be

6/100 × s = 0.06 × s = 0.06s

Her total income for a month would be

2500 + 0.06s

She wants to earn at least $2,900 this month.

Therefore, the inequality that represents the situation would be

2500 + 0.06s ≥ 2900

0.06s ≥ 2900 - 2500

0.06s ≥ 400

s ≥ 400/0.06

s ≥ 6666.7

5 0
3 years ago
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