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Scrat [10]
3 years ago
13

Which type of relationship would best model this data?

Mathematics
1 answer:
MAXImum [283]3 years ago
6 0

Answer:

positive linear is correct answer

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Jane brought x shirts for $20 each and y skirts for $25 each she spent $210 in all. which equation represents this situation 2
miv72 [106K]

Answer:

Part A

20x + 25y = 210 --> D.

Part B

If jane purchased exactly 4 shirts she must have purchased Exactly ___ skirts. (round to the nearest tenth)

20*4 + 25y = 210 --> y = 5.2

is it possible for jane to purchase exactly 4 shirts? ____(yes or no)

no, because she can't buy 5.2 skirts.

5 0
3 years ago
Read 2 more answers
Use the Law of Cosines to find the missing angle. In triangle JKL, j=3in., k=4in., and l=2.89., find mJ
slega [8]
Using the law of cosine for Triangle KJL, we can write:

j^{2} = k^{2} + l^{2}-2(k)(l)cos(J)  \\  \\ 
2(k)(l)cos(J)=k^{2} + l^{2}- j^{2} \\  \\ 
cos(J)= \frac{k^{2} + l^{2}- j^{2}}{2(k)(l)}

Using the values of k,j and l, we can write:

cos(J)= \frac{ 4^{2} + (2.89)^{2} - 3^{2} }{2(4)(2.89)}  \\  \\ 
cos(J)= 0.664 \\  \\ 
J= cos^{-1}(0.664) \\  \\ 
J=48.39

Rounding to nearest integer, the measure of angle J will be 48 degrees.
So option B gives the correct answer
8 0
2 years ago
Read 2 more answers
Simplify. -11 - (-42)
ozzi
Marcus made a mistake in Step 2. 5/2.5 is 2 not 3.

-11 -(-42) A double negative makes a positive

-11 + 42

31
6 0
3 years ago
A tank 4/5 full needs 75 litres to fill it up.how many litres does it hold when full
Ann [662]
X - the volume of the tank

\frac{4}{5}x+75=x \\
75=x-\frac{4}{5}x \\
75=\frac{1}{5}x  \ \ \ |\times 5 \\
x=375

The tank holds 375 liters when full.
8 0
3 years ago
Jackson's puppy gains 104 pounds in 52 weeks. At that rate, how many pounds would his puppy gain in 40 weeks?
Softa [21]

Answer:

80

Step-by-step explanation:

104:52 = 2:1 = 2 pounds per (1) week

40 × 2 = 80

8 0
2 years ago
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