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matrenka [14]
3 years ago
13

Answer these please

Mathematics
1 answer:
defon3 years ago
8 0

Answer:

9: is answer 3

10: is answer 1

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PLEASE ANYBODY HELP ME PLEASE I BEG OF YOU!!! PLEASE WILL GIVE BRAINLIEST
muminat

Answer:

Paper route earnings each week=($87.8-$37.8) / 10 =$5

If $5=20% we have to find how money is the 100%.

$5-----------------20%

x------------------100%

x=($5*100%) / 20%=$25

solution: $25.00

Step-by-step explanation:

5 0
3 years ago
For question 19 and 20 can you please solve! Ill award 50 points to however does it! Thank you soo much!
Fittoniya [83]

Answer:

Step-by-step explanation:

19.

2x^2+x-6=0

x^2+x-12=0

(x+2)(2x-3)=0

x=-2,3/2

20.

x^2+8x+15=0

(x+3)(x+5)=0

x=-3,-5

4 0
3 years ago
Read 2 more answers
The slope between (250,120) and (300,90)
fgiga [73]

m = − 3/ 5  your welcome

6 0
3 years ago
Read 2 more answers
20 customers are eating at a local resturant. of the 20 customers 4 have enough to pay cash, 16 have enough to pay card and 3 ha
Levart [38]

Answer:

19/20

Step-by-step explanation:

20 is the total number of people (the denominator) and 19 is the amount of people able to pay card (the numerator)

4 0
4 years ago
Two sides of a triangle are 7 m 7 m and 12 m 12 m in length and the angle between them is increasing at a rate of 0.06 rad/s 0.0
gayaneshka [121]

Answer:

1.26 m^2 / s.

Step-by-step explanation:

The area A of the triangle = 1/2*7*12 sin x  = 42 sin x where x  is the angle between the lines.

Relation between the rates is

dA/dt  + dA/dx * dx/dt

We are given that dx /dt = 0.06 rad/s.

A = 42 sin x

dA/dx = 42 cos x

So dA/dt = 42 cos x * 0.06

When x = π/3  ( I am assuming that π 3 means π divided by 3 ):

dA/dt = 42 cos π/3 * 0.06

= 1.26 m^2/s.

8 0
3 years ago
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