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4 years ago

Examine the graph.

Mathematics

1 answer:

ss7ja [257]4 years ago

6 0

The correct answers for this question are these:
<span>2 < x < 3
and
</span><span>−3 < x < -2

As you can see in the given graph, there are two intervals that the line is increasing. Increasing graph is when the line rises from left to right. In the graph, the first increase in graph is -3 < x < -2 and the other one is at the last part 2 < x < 3
</span>

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Iteru [2.4K]

answer:

x = 0.80

y = 1.50

step-by-step explanation:

x = cost of tacos

y = cost of burritos

both equations:

3x + 2y = 5.40

2x + 1y = 3.10

turn this | into this |

y = 3.10 - 2x

then add it to the equation :

3x + 2 [ 3.10 - 2x ] = 5.40

3x + 6.2 - 4x = 5.40

-1x = - 0.8

x= 0.80

then add x = 0.80 to the equations to get :

3 [ 0.80 ] + 2y = 5.40

2.4 + 2y = 5.40

2y = 3

y = 1.5

5 0

3 years ago

una ferreteria compra 4 bobinas de cable de 200 metros cada una a 2 euros el metro ¿a cuanto debe vender el metro si quiere gana

pashok25 [27]

Answer:

The selling price of meter of cable must be equal to 3 euros

Step-by-step explanation:

The question in English is

A hardware store buys 4 reels of cable of 200 meters each at 2 euros per meter. How much must the meter sell if you want to earn 800 euros?

we know that

The profit will be equal to the selling price minus the purchase price, all multiplied by the total meters of cable

Let

x -----> the selling price of the meter of cable

y -----> the purchase price of the meter of cable

N ----> the meters of cable

P ----> the profit

$P=N(x-y)$

we have

The total meters of cable N purchased is equal to

$N=4(200)=800\ m$

$y=2\ euros\meter$

$P=800\ euros$

substitute

$800=800(x-2)$

Solve for x

Simplify

$1=(x-2)$

$x=2+1=3\ euros$

therefore

The selling price of meter of cable must be equal to 3 euros

3 0

4 years ago

A baby weighed 7 pounds at birth and gained 3 pounds a month. How much did the baby weigh in 5 months?

Keith_Richards [23]

The baby weighed 22 pounds after 5 months

6 0

4 years ago

Read 2 more answers

Solve the system of equations using elimination/combinations-2x -y = -4 x + 2y =5

sweet-ann [11.9K]

Answer:

x = 1, y = 2

Step-by-step explanation:

In the elimination method to solve a system of linear equations, one of the two equations is added/subtracted to the other, in order to eliminate one variable from the equation.

In this problem, we have the following two equations:

$-2x-y=-4\\x+2y=5$