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3 years ago

Solve the system of equations. y=5x-9 y=3x +7

Mathematics

1 answer:

ELEN [110]3 years ago

7 0

Download photomath it really helps and solves the question for you and shows you the steps

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Malorie can work 10 math problems in 3 minutes. At this rate, how many problems can she work in one hour?

lisov135 [29]

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If you multiply 3 by 10 and add a zero onto the ten in the question that is 100 in half an hour, all you need to do then is multiply that answer by two to get your answer.

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3 years ago

Jordan will hike the trail shown at a rate of 4 mi/h. Write a linear equation to represent the distance Jordan still has to wal

dangina [55]

Answer:

Y=25-4x

Y means the distance Jordan still has to walk after x hour

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2 years ago

Line AB contains points A(4, 5) and B(9,7). What is the slope of AB?

vlabodo [156]

Answer:

2/5

Step-by-step explanation:

We can find the slope of a line given two points by using

m =(y2-y1)/(x2-x1)

= (7-5)/(9-4)

= 2/5

7 0

3 years ago

Read 2 more answers

Isabel’s car gets 33.5 miles per gallon. Her gas tank holds 15.1 gallons of gas how many miles can Isabel drive on a full tank o

bagirrra123 [75]

Isabel can drive 505.85 miles with a gas tank that holds 15.1 gallons of gas

<em><u>Solution:</u></em>

Given that, Isabel’s car gets 33.5 miles per gallon

Her gas tank holds 15.1 gallons of gas

To find: Number of miles can Isabel drive on a full tank of gas

Let "x" be the miles drive with 15.1 gallons of gas

From given,

1 gallon = 33.5 miles

15.1 gallon = x miles

This forms a proportion and we can solve the sum by cross multiplying

$1 \times x = 15.1 \times 33.5\\\\x = 505.85$

Thus Isabel can drive 505.85 miles on a full tank of gas

6 0

3 years ago

A bag contains:

Lady bird [3.3K]

Answer:

3/50

Step-by-step explanation:

There are 5 + 4 + 2 + 6 + 3 = 20 marbles in the bag

P(draw a black) = 6/20 = 3/10

If the black marble is replaced, then there are 20 marbles in the bag again.

P(draw a blue) = 4/20 = 1/5

P(draw a black and blue with replacement) = (3/10)(1/5) = 3/50

6 0

3 years ago