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zheka24 [161]
3 years ago
11

I GRADUATE AFTER THIS ONE PLEASE HELP

Mathematics
2 answers:
soldi70 [24.7K]3 years ago
3 0
A hyperbola is formed
NNADVOKAT [17]3 years ago
3 0
Its F. Hyperbola,Congratulations :D
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Sue has 100 dimes and quarters. If the total value of the coins is $21.40, how many of each kind of coins does she have?
Nookie1986 [14]

Answer:

There would be 24 dimes and 76 quarters.

Step-by-step explanation:

In order to find this, start by defining the number of dimes by x and the number of quarters as y. Now we can create a system of equations. Make the first about the total number of coins.

x + y = 100

Make the second about the amount of money.

.10x + .25y = 21.40

Now we can solve using elimination by multiplying the second equation by -4 and adding through.

x + y = 100

-.40x - y = -85.60

-----------------------

.60x = 14.4

x = 24

Now we can use the amount of dimes we have to find the number of quarters.

x + y = 100

24 + y = 100

y = 76

3 0
3 years ago
What is 3/5 equal to
klio [65]
3/5 is equal to .6 and 60%
6 0
3 years ago
Read 2 more answers
A turtle and a rabbit engage in a footrace over a distance of 4.00 km. The rabbit runs 0.500 km and then stops for a 90.0-min na
Oxana [17]

Answer:

(a) 2.29 km/h

(b) 9 km/h

Step-by-step explanation:

For part (a) you have to apply<em> the average speed formula</em>, which is defined by:

v=\frac{d}{t}

where d is the total distance traveled and t is the total time needed.

d=\frac{4.00}{1.75}=2.29 km/h

For part (b) you have to calculate the running time (T) , which is the total time of the race minus the nap time:

The nap time in hours is:

90/60 = 1.5 h (because there are 60 minutes in one hour)

The running time is:

T= 1.75 - 1.5 = 0.25 h

Let t1 represent the time before the nap and t2 the time after the nap:

t1+t2 = T

t1+t2 = 0.25

You have to apply the formula d=vt before and after the nap:

-Before the nap, the distance traveled was 0.50 km

0.50 = v1t1

-Afer the nap, the distance traveled was 3.50 km

3.50=v2t2

But v2=2v1 (because after the nap the rabbit runs twice as fast)

You have to solve the system of equations:

t1=0.25-t2 (I)

v1t1=0.50 (II)

2v1t2=3.50 (III)

Replacing (I) in (II)

v1(0.25-t2)=0.50

Applying distributive property and solving:

0.25v1-v1t2=.050

For (III) you have that v1t2=3.50/2=1.75. Hence:

0.25v1-1.75=0.50

Solving for v1:

v1 = 9 km/h

7 0
3 years ago
for an interview 60% of the applicants were selected. After the interview 20% for those who were selected go to the job offer​
Y_Kistochka [10]

Answer:

20%

that should be the answer to the question

5 0
3 years ago
Find the y-intercept of the line. If needed use "/" for a fraction. b= <br><br>y=10+4x​
11111nata11111 [884]

Y-intercept(b)= 10

equation wasnt written in the correct order so b is 10

7 0
1 year ago
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