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KiRa [710]
3 years ago
13

Can someone talk me through the steps?

Mathematics
1 answer:
dimulka [17.4K]3 years ago
3 0
Y = 6.9x + 5.1.....multiply by 10 to get rid of decimals
10y = 69x + 51 ...subtract 69x from both sides
-69x + 10y = 51
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Find the value of the variable if P is between J &amp; K. <br><br> JP = 2x ; PK = 7x ; JK = 27
Nana76 [90]
J ---- P --- K

JP = 2x
PK = 7x
JK = 27

2x + 7x = 27
9x = 27
x = 27/9
x = 3

The value of P is 3.

JP = 2x = 2(3) = 6
PK = 7x = 7(3) = 21

7 0
3 years ago
If f(x) = -4x^2 - 6x - 1 and g(x) = -x^2 - 5x + 3, find (f + g)(x).
Flauer [41]

Answer:

-5x^{2}-11x+2

Step-by-step explanation:

-4x^{2} \\-6x-1-x^{2}-5x+3=-5x^{2}-11x+2

7 0
3 years ago
Carl and rita at breakfast at the local diner. Their bill came to $11.48. They gave their waitress a tip that wad 25% of the bil
WINSTONCH [101]

Answer:

(11.48*25%)+11.48


Step-by-step explanation:


4 0
3 years ago
PLEASE HELP!! I’ll make you the brainlyest!!!
STatiana [176]

Answer:

15

Step-by-step explanation:

Can't really see the graph clearly but the range looks like its from 40-70 so 30 and the amplitude is half of that so 15.

6 0
2 years ago
Maylin goes to her local sporting goods store to buy socks and jogging shorts. Socks cost​ $10 per pair and jogging shorts cost​
PolarNik [594]

Answer:

Maylin should purchase one unit of each socks & jogging shorts.

Step-by-step explanation:

In case of two goods, consumer is at equilibrium when marginal utility per dollar spent on last unit of the goods are equal, ie MU 1 / P1 = MU 2 / P2 (MU are the marginal utilities / marginal benefit of two goods, P are the price of two goods)

Given : MU1 (So) = 20, MU2 (JSh)  = 30, P1 (So) = 10, P2 (JSh) = 15

So, equilibrium is at where MU1 (So) / P1 (So) = MU2 (JSh) / P2 (Jsh)

20/10 = 2, & 30/15 = 2.  MU's per dollar are equal for both.

So Maylin is in equilibrium, she should purchase one unit of each socks & jogging shorts.

5 0
3 years ago
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