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adelina 88 [10]
3 years ago
15

Find the x intercept and the y intercept of the graph of the equation 5x+4y=40

Mathematics
1 answer:
guapka [62]3 years ago
5 0

Answer:

x intercept is 8, y intercept is 10

Step-by-step explanation:

x intercept is the x value for which the graph crosses the x-axis. Similar for y.

5x + 4y = 40 describes a straight line, so we should have no problem with finding those values

Let's find an x for which y = 0

5x + 4y = 40

substitute y=0

5x = 40

x = 8

Let's find a y for which x = 0

5x + 4y = 40

substitute x=0

4y = 40

y = 10

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Maria has eight black marbles, fourteen clear marbles, and twelve blue marbles in a bag. If she picks two marbles at random, wit
horrorfan [7]

Answer:

\boxed{0.15}

Step-by-step explanation:

Part 1: Solve for the total amount of marbles

To solve for the probability of certain events, a population is needed to derive this information from. In order to find this population, add up the amounts of each marble.

8 + 14 + 12 = 34 marbles

Part 2: Determine the probabilities

Now, given the amounts of marbles, simply multiply the ratios of blue marbles to total marbles and the ratio of clear marbles to total marbles to get the combined probability.

\frac{12}{34}*\frac{14}{33} =  \frac{28}{187} \approxeq 0.1497 \approxeq 0.15 * 100 = 15

The probability of these events occurring simultaneously is 15%.

8 0
3 years ago
Ad claims 5 out of 6 students prefer talking than texting. Is the prediction correct is 500 out of 60? Explain why predicting is
balandron [24]

Answer:

Step-by-step explanation:5/6 is 0.83 as a decimal you need to multiply that by 500 to see that 415 out of 500 would prefer talking to texting

5 0
3 years ago
Which does not represent an equivalent expression to 8x +4
sineoko [7]

Answer:

d) 2x(4x + 2)

Step-by-step explanation:

a) 4(2x + 1) = 8x + 4

b) 1/2(16x + 8) = 8x + 4

c) 2(4x + 2) = 8x + 4

d) 2x(4x + 2) = 8x² + 4x

4 0
2 years ago
Refer to the accompanying scatterplot. a. Examine the pattern of all 10 points and subjectively determine whether there appears
Alex

Answer:

Which is the output of the formula =AND(12>6;6>3;3>9)?

A.

TRUE

B.

FALSE

C.

12

D.

9

Step-by-step explanation:

5 0
3 years ago
The perimeter of a rectangle is 370 m. The length of the rectangle is 65 m. How wide
kari74 [83]

Answer:

120

Step-by-step explanation:

370m - (65 x 2) = 240

240 divided by 2 = 120

6 0
3 years ago
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