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Natali [406]
3 years ago
14

Which statement correctly explains how kasi could find a solution to the following system of linear equations using elimination

Mathematics
2 answers:
Maksim231197 [3]3 years ago
8 0

Answer:

A.

Step-by-step explanation:

Fook edgenuit.y

jarptica [38.1K]3 years ago
5 0

A. She can multiply the bottom equation by -4 and then add the equations to solve for h.

-4g - 15h = -17

4g - 20h = -52

Add them to get

-15h = -17

-20h = -52

From here, you can solve for h.

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Sierra’s ice cream shop made $45 before she had to close early when the power went out. She realized she lost Two-thirds of a do
lozanna [386]

Answer:

Sierra's profit was $41.

Step-by-step explanation:

Sierra realized she lost two-third of a dollar each hour when the shop was closed.

The expression that models this situation is,  ............. (1)

Now, we have to calculate Sierra's profit if the shop was closed for 6 hours.

So, putting h = 6 hours in the equation (1) we get,

dollars.

So, Sierra's profit was $41. (Answer)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Train A leaves New York for California at the same time Train B leaves California for New York. They are 2900 miles apart. They
professor190 [17]

Answer:

(A) 120 mph

(B) -120 mph

(C) 12 hours 5 minutes.

Step-by-step explanation:

Given that,

New York and California are 2900 miles apart,

Both the trains A as well as B travel at an average speed of 120 mph.

Assuming that the path between the starting point in New York and the ending point in California is straight, so the given distance of 2900 miles is actually the shortest distance which is the displacement between the source and destination.

So, the given speed on the straight path is actually the velocity.

Assuming that the velocity is positive in the direction from New York towards California.

(A) So, the velocity of train A (towards California)  = 120 mph.

(B) The velocity of train B (towards New York) = -120 mph.

(C) Bothy are moving towards each other, so the relative velocity between them is 120+120=240 mph, and the initial distance between them is 2900 miles.

When they meet, the displacement between them becomes zero, displacement covered= 2900-0=2900 miles.

So, the time, t, taken to cover the displacement 2900 miles with a relative velocity of 240 mph is

t=\frac{2900}{240} [as time= displacement / relative velocity]

\Rightarrow t=12\frac{1}{12} hours

=12 hours 5 minutes.

7 0
3 years ago
What is the domain of 6x+7/9x+2
Anon25 [30]

Answer:

Domain of the function is (inf, -inf)

Step-by-step explanation:

6 0
3 years ago
Help!!!<br> ASAP!!!<br> Many thanks!
Nataly_w [17]

Answer:

Equation: 7+15.50x=100

People= 6

Step-by-step explanation:

7+15.50x=100

-7            = -7

15.50x    = 93

divide by 15.50= 6

15.50 times 6 = 93

4 0
3 years ago
10 POINTS IDENTIFY THE SLOPE, Y-INTERCEPT AND GRAPH.<br> 1. Y= 2X + 3<br> 2. Y = 34 X-2
Umnica [9.8K]

Answer:

slope: 1.) 2 ,,, 2.) 3/4

y-int: 1.) (0,3) ,,, 2.) (0,-2)

graph: attached in pictures/ blue line represents y=2x+3 ,,, red line represents y=3/4-2

Step-by-step explanation:

3 0
3 years ago
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