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3 years ago

Rectangle JKLM

Mathematics

2 answers:

Alex777 [14]3 years ago

5 0

It’s a I did this like 2 days ago

Ganezh [65]3 years ago

3 0

Answer:

Answer is A - Angles that are congruent are complementary to the same angle.

Step-by-step explanation:

trust the process

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Rachel tutors English. for each hour that she tutors, she earns 50 dollars. Let E be her earnings (in dollars) after tutoring fo

n200080 [17]

Answer:

a. E = 50 H b. 950 dollars

Step-by-step explanation:

a. Since Rachel tutors English for 50 dollars for each hours, her rate is 50 dollar per hour. If she tutors for time, H hours, Her earning E = rate × time = 50 × H

E = 50H.

b. If Rachel's earnings after tutoring for 19 hours is gotten by substituting H = 19 into the equation for the earnings, E.

So, E = 50H

E = 50 × 19

E = 950 dollars.

So, Rachel's earnings after 19 hours is 950 dollars.

4 0

3 years ago

Train a is traveling at 30 mph faster than train b. If train a travels 350 miles in the same amount of time that train b travels

GalinKa [24]

Answer:

20 mph

Step-by-step explanation:

Let speed of Train a = Va mph

Let speed of Train b = Vb mph

Va = Vb + 30

Let time taken for Train a = Ta

Let time taken for Train b = Tb

time taken = distance travelled/speed

Ta = 350/Va = 350/(Vb+30)

Tb = 140/Vb

But they both travel in the same amount of time.

So, Ta = Tb

$\frac{350}{v_{b} + 30}=\frac{140}{v_{b}}$

Cross multiply

$350v_{b} = 140(v_{b} + 30)\\\\350v_{b} = 140v_{b} + 4200\\\\350v_{b} -140v_{b} = 4200\\\\210v_{b} = 4200$

Divide both sides by 210

$\frac{210v_{b} }{210} \frac{4200}{210} \\\\v_{b} = 20 mph$

4 0

3 years ago

Find the solutions to the system

Musya8 [376]

y=x^2+5x+6
y=4x+12
Solution = (-3,0) and (2,20)

y=x^2-3x-1
y=8x-1
Solution = (0,-1) and (11,87)

3 0

3 years ago

I need help with #11 - #14.

Aleonysh [2.5K]

Answer:

I can get you jump started a bit.

Step-by-step explanation:

So Each of those pairs of figures are Similar.

This means they have equal angle measures but different side lengths.

To find it, we have to make a Proportion:

Example: #11

$\frac{x+1}{3x+1} =\frac{8}{20}$

So let's solve the first one!

$24x+8=20x+20\\4x=12\\x=3$

Easy As Pie!

If you need more help, contact me! :)

Hope this Helps!

P.S. Stay Safe!

6 0

3 years ago

Read 2 more answers

PLS HELP (2.01)A polygon is shown on the graph:

ratelena [41]

A translation of 4 units down means subtract 4 from the y-coordinate.

A translation of 5 units right means add 5 to the x-coordinate.

The new polygon will have vertices

A'(-1, 1)

B'(-1, -2)

C'(3, -2)

D'(3, 2)

4 0

3 years ago

Read 2 more answers