50 POINTS

Solve the system of equations using the system of elimination
2x-7y=-13
8x-7y=11

Answers

Answer 1
This is the answer (4,3) x=4, y=3
Answer 2

Answer:

-24

Step-by-step explanation:


Related Questions

Please help!!!!!!

Rewrite this equation in terms of y
2x-3y=22

Answers

The answer is y = 2/3x - 22/3

Answer:

y=[tex]\frac{-22}{3}[/tex]+[tex]\frac{2}{3}[/tex]

Step-by-step explanation:

first subtract 2x

2x-3y=22

-2x    -2x

-3y=22-2x

divied by-3

-3y/-3=22-2x/-3y

answer-y=-22/3+2/3x

find sin A and B, cos B and A, and tan B and A​

Answers

Step-by-step explanation:

[tex] \sin(a) = \frac{7}{25} = 0.28 \\ \sin(b) = \frac{24}{25} = 0.96 \\ \cos(a) = \frac{24}{25} = 0.96 \\ \cos(b) = \frac{7}{25} = 0.28 [/tex]

tan(A)= 7/24= 0.29

tan(B)= 24/7=3.42

A=16.26°

B=73.73°

Swim flippers are helpful for scuba
diving. You can rent them daily for
$15 per day, plus 8% tax. How
much will it cost, including tax, to
rent them for three days?

Answers

Answer:

The answer would be $48.60.

Step-by-step explanation:

Some people could probably answer it better but here's my way: When you have a percentage of something you bring it to the decimal. 8% would be 0.08. We take this and multiply it by the cost: 0.08 times 15, giving us $1.2 per $15 dollars spent. 1.2 times the 3 days would be 3.6 and 15 times 3 is 45 together this would give you the grand total of $48.60.

A submarine dove to a point 1760 feet below sea level.
Write a signed number to represent this elevation.

Answers

-1760. Just let 0 be sea level

Answer:

-1760

Step-by-step explanation:

Sea level is 0 so if you under water then you are going into negatives.

PLS HELP I WILL GIVE BRAINLIEST

Answers

12 x 5 = 60

3 x 4 = 12

60 x 12 = 720

720 = Area

In the figure, AB || CD. If m<1=70° and m<2 = 45°, find the m<3

Answers

Answer:65 degrees

Step-by-step explanation: a triangle has 180 degrees.

one angle is 45 degrees and the other is 70

if we add them together we get 115

180-115 is 65

m3 is 65 degrees

Parth created a Box-and-Whisker Plot to show the average weight of the fish he caught over the weekend. What information from the 3rd Quartile does the graph give you?



A. Three fourths of the fish he caught were more than 50.5 pounds.
B. The average weight of the fish he caught was 40 pounds.
C. Three fourths of the fish he caught were less than 50.5 pounds.
D. The largest fish he caught was 63 pounds.
Pls i ned hlp

Answers

Answer:

the answer is c srry if i am wrong

Step-by-step explanation:

if you look at it it says 3rd quartile witch it is at the front so it says 50.5

and the rest is less than that so that why i think it is C. pls mark brainliest if ok

Answer:

Step-by-step explanation:

C ;-;

Please guys please, I need help ASAP, giving brainleist!

Answers

Answer:

Step-by-step explanation:

a 2m+5=13

2m=8

m=4

b 3m/5=-6

3m=-30

m=-10

c 4-5x=19

-5x=15

x=-3

d x/4-10=2

x=48

e -24=8(h+3)

-24=8h+24

-48=8h

h=-6

f -3+d/2=9

-3+d=18

d=21

hope this helps!

(attached image in the file below)

Follow the order of operations to simplify
1. 60 ÷ 10×3
2. 12 + 3×7
3. 4×3+2×8​

Answers

1. 18
2. 33
3. 28

explain: division first so 6x3
multiply first so 12+21
multiply both then add so 12+16
I think it’s 2 60/30 since it is pemdas parentheses exponents multiplication division add subtract

what is -2+9 (8) (1/2)​

Answers

Answer:

28

Step-by-step explanation:

-2+9 (4)=7(4)=28

What is the approximate volume of the cone?

Use 3.14 for π.


57 cm³

339 cm³

509 cm³

1526 cm³
Outline of cone with a dotted line rising from middle of base to the point. Line is labeled 6 cm. A second dotted line extends horizontally from middle of base to its edge. Line is labeled 9 cm.

Answers

Answer:

D is the answer most  likely your answer

Step-by-step explanation:

3.14x81x6=1526.04 which rounding would be 1526cm^3

what can 980 be divided by

Answers

Step-by-step explanation:

there are so many numbers that can be divided into 980 like 2,3,4,5 etc....

Betty has 25 baseball cards and 10 basketball cards in her sports card collection what is the ratio of baseball cards to basketball cards

Answers

Answer:

25:10

Step-by-step explanation:

Plz give brainliest I wanna level up

Answer: 5:2

Step-by-step explanation:

45 is 100% of what number?
What’s the answer?

Answers

Answer:

45 is 100% of 45

Step-by-step explanation:

Answer: 45 is 100% of 45

Step-by-step explanation:

I NEED HELP!!!!!!!!!!!

Answers

The answer is b, because b explains how to get 16x2 - 36.

Juan made 3 identical necklaces each having beads and a pendent the total cost of the beads and pendent for all 3 necklaces was $19.20. If the beads cost $2.80 for each necklace, how much did each pendant cost?

Help I gave 30 points

Answers

Answer:

Step-by-step explanation:

2.80 x 3 = 8.40 so 19.20-8.40=10.8 then 10.80/3= 3.60

What is the y-value when x = 0 in the function below? y=8x+7

Answers

Answer:

dfghjk

Step-by-step explanation:

lol

Which of the following equations would be parallel to the line x = 3?

1. y = 3x

2. y = 1

3. y = x

4. x = 5

Answers

Answer:

4. x = 5

Step-by-step explanation:

For two lines to be parallel they must have the same slope, but not be the same line. Both x=3 and x=5 both have slopes of 0, so they are parallel. Another way to tell is that x=3 is a vertical line; therefore, it will be parallel to any other vertical line, such as x=5.

The last answer is correct... x = 5

How many grams are in 4.3 moles of ammonium chloride

Answers

Answer:

230 g

Step-by-step explanation:

4.3 x molar mass of NH4Cl

Molar Mass of NH4Cl = 14.0067 + 4x1.0079 + 35.453 = 53.491

4.3 x 53.491 = 230 g

What is the percentage population increase if in 2001 it is 430000 and in 2011 it is 510000

Answers

Answer:

18.6%

Step-by-step explanation:

What is the percentage population increase if in 2001 it is 430000 and in 2011 it is 510000

Percentage increase is calculated as:

Final value - Initial value/ Initial value × 100

Final value = 510000

Initial value = 430000

Percentage Increase =

510000 - 430000/430000 × 100

= 80000 / 430000 × 100

= 0.1860465116 × 100

= 18.604651163 %

Approximately = 18.6 %

Can you help me and explain how to do it? please​

Answers

Answer:

125.6cm

Step-by-step explanation:

circumference of a circle is 2pir

pi=3.14

r=d/2=40cm/2=20cm

So, 2pir=2X20cmX3.14=40cmX3.14=31.4cmX4=125.6cm

PLEASE MAAKE THIS THE BRAINLIEST ANSWER

Mr. Tyler buys 4 round-trip tickets from Ft. Lauderdale, Florida, to Toronto, Canada. The total cost is $2,156. How much does each ticket cost? Enter the correct answer in the box

Answers

Answer: $539

Step-by-step explanation:

From the question, we are informed that Mr Tyler bought 4 round-trip tickets from Florida to Canada and that the total cost is $2,156.

The cost of each ticket will then be:

= Total cost of the tickets / Number of tickets

= $2156 / 4

= $539

Therefore, each ticket cost $539

Fifty cupcakes cost 129. What is the unit price for one cupcake?​

Answers

Answer: 2.58

Explanation:
129/50
=2.58

Answer2.58

Step-by-step explanation:

129 / 50 = 2.58

This graph shows the relationship between x, the number of hours Mr. David
works, and y, the number of dollars he ears.
Mr. David's Earnings

A. Based on the graph, is the relationship between x and y proportional?
Explain your reasoning
B. What does the point (3,90) represent in the context of this situation?
C. Based on the graph, how many dollars will Mr. David earn if he works
10 hours? Show or explain how you got your answer.
D. Write an equation that could be used to find y, the number of dollars
Mr. David earns for working x hours.

Answers

Answer:

A. Proportional by $30

B. 3 represents the hours he works

    90 represents the money he earned

C. $300

D. I don know, sorry

Step-by-step explanation:

The relationship is linear, the point (3, 90) represents in 3 hours he earns 90 dollars, in 10 hours, he earns 300 dollars, and the linear equation is y = 30x.

What is the linear system?

A Linear system is a system in which the degree of the variable in the equation is one. It may contain one, two, or more than two variables.

This graph shows the relationship between x, the number of hours Mr. David works, and y, the number of dollars he earns.

A. Based on the graph, the relationship between x and y proportional is a linear relationship.

B. The point (3,90) represents in 3 hours he earns 90 dollars.

D. The linear equation will be

[tex]\begin{aligned} \rm y - 30 &= \rm \dfrac{90-30}{3-1} (x - 1)\\\\\rm y - 30 &= \rm 30x - 30\\\\\rm y &= \rm 30x \end{aligned}[/tex]

C. Based on the graph, the amount of money in dollars will Mr. David earn if he works 10 hours will be

y = 30x

y = 30 × 10

y = $300

More about the linear system link is given below.

https://brainly.com/question/20379472

#SPJ2

How do i get from 7 to 35?

Answers

Answer:

Step-by-step explanation:

I fu-ck-ed my girl-friend real good

In triangle ABC, the measure of angle ABC is 51°
and ACB is a right angle. What is the measure of
angle BAC in degrees?

Answers

Answer:

39 degrees

Step-by-step explanation:

The sum of angle in the triangle ABC is a80 degrees

m<ACB + <BAC + <ABC =1 80

90 + <BAC + 51 = 180

141 + m<BAC = 180

m<BAC = 180-141

m<BAC = 39 degrees

Hence the measure of m<BAC is 39 degrees


find the volume of the cone

Answers

Answer:

132::

Step-by-step explanation:

The power of g00gle <3

22) (2n-q)-56-2,4nt4)

Answers

Answer:

?

Step-by-step explanation:

I think some of the question is missing.

What is 3/4 - 1/3 ??

Answers

Answer:

5/12

Step-by-step explanation: I used a calculator

i need to know the answer to these two questions up at the top please

Answers

A) x=3 and b) x= 9/3

Answer:

x = 3

x = 4.5

Step-by-step explanation:

A) 2(5x - 3) = 24

5x - 3 = 12 (divide both sides by 2)

5x = 15 (add 3 to both sides)

x = 3 (divide both sides by 5)

B) 5(2x + 1) = 50

2x + 1 = 10 (divide both sides by 5)

2x = 9 (take 1 away from both sides)

x = 4.5 (divide each side by 2)

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