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3 years ago

The sum of two numbers is -7. Five times the first number plus the second number is 1. What are the numbers?

Mathematics

1 answer:

arlik [135]3 years ago

4 0

Answer:

Step-by-step explanation:

Well you only want the two equations so here they are.

x + y = -7

5*x + y = 1

I should give you the answer.

x = 2

y = -9 I think. These answers were done in my head.

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If AB=6x-7 and BC=5x-3 find AC

luda_lava [24]

Answer:

AC= AB+BC

= 6x-7+ 5x-3

= 11x-10

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3 years ago

Jsjjss pls help its uRGeNT

Sedaia [141]

Answer: y=7x

Step-by-step explanation:

The way I did it was, I looked at the chart. The highest it goes is 30 and 210. So for your answer, you have to multiply. 7x30 gives you 210 and there y=7x

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3 years ago

45 x 60 / 45 = ______ <br><br> pleasee help

AleksandrR [38]

Answer:

Step-by-step explanation:

45 x 60/45 = 2700/45

2700/45 = 60

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2 years ago

What is the intial value and rate of change in this graph. please explain step by step!!!!!

WARRIOR [948]

The initial value of the graph is where $x = 0$ . Thus, in this case, the initial value is 12.

The rate of change of the graph is essentially the slope of the graph. In this case, we can use the slope formula:

$\dfrac{y_2 - y_1}{x_2 - x_1}$

$(x_1, y_1)$ and $(x_2, y_2)$ are points on the graph

Let's use two points from the chart to find the slope:

$m = \dfrac{30 - 21}{2 - 1} = 9$

In this case, the rate of change of the graph is 9.

4 0

3 years ago

Read 2 more answers

A pedestrian walks 7.4 kilometers west

attashe74 [19]

Answer: 11.8 km

Step-by-step explanation:

The resulting figure is a right angled triangle shown below

$Apply the Pythagorean theorem to find out the magnitude of the resultant vector $A B$ in the triangle $A B C$ as follows -$$\begin{aligned}&A B^{2}=B C^{2}+C A^{2} \text { (Hypotenuse }{ }^{2}=\text { Base }^{2}+\text { Adjacent }^{2} \text { ) } \\&=7.4^{2}+9.2^{2} \\&=139.4 \\&A B=11.806777 \\&\quad A B \approx 11.8 \mathrm{~km} \text { (Rounded off to the nearest tenth) }\end{aligned}$

3 0

2 years ago