1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
skelet666 [1.2K]
3 years ago
5

Solve this system of equations using the addition method.

Mathematics
1 answer:
damaskus [11]3 years ago
6 0
Eqt 1 = 4a-5b=7
eqt 2 = 4a+5b=17
eqt1+eqt2= 8a=24
a=3  then 4*3-5b=7 
so b=1
You might be interested in
Please help! need the answer
san4es73 [151]

Answer:

Each base angle is 81°

Step-by-step explanation:

A pennant is in the shape of an isosceles triangle and the vertex angle is 18°.

An iscosceles triangle has two equal sides and two equal angles.

So assuming the base angles measure b° each;

b° + b° + 18° = 180° (angles in a triangle add up to 180°)

2b° = 180° - 18° = 162°

b = 162° ÷ 2 = 81°

So each base angle is 81°

6 0
3 years ago
3 Jade buys a blouse and a skirt for of their original price. She pays a total of $31.50 for the two items. If the original pric
maksim [4K]

Answer:

$13.50

Step-by-step explanation:

if the total is $31.50, it is both the blouse and the skirt together, so uf you take away the blouse from the total ($31.50 - $18) then yiu are keft with the price of the skirt

7 0
2 years ago
Lin runs 5 laps around a track in 8 minutes.
andrezito [222]

Answer:

To run one lap Lin takes 1.6 minutes.

Step-by-step explanation:

To find this answer you would do 8 divided by 5. Always remember when dividing time goes first unless the instructions / directions / your teacher says differently. So, when you do 8 divided by 5 the answer you get is 1.6, and there is your answer. Also to check your answer you can do 1.6 times 5, and you get 8, so you know that 1.6 is the correct answer.

5 0
3 years ago
Plz help plz I am already failing I dont want to fail more
Gnom [1K]

Answer:

B is the closet to pi hsiebfjwjgsbe9fbe

7 0
3 years ago
Find the slope of the line that passes through
Crazy boy [7]
Slope: (y2-y1)/(x2-x1)
(-3+5)/(-1-7) = 2/-8 = -1/4
The answer is d) -1/4
3 0
3 years ago
Other questions:
  • Five brothers picked 5 pounds of apples. Two of the
    15·2 answers
  • If f(x) = x2 − 6x + 3 x − 1 , what is f(−1)? A) −5 B) −2 C) 2 D) 5
    5·1 answer
  • Abcd is a rectangle with b(-5, 0), c(7, 0) and d(7, 3). find the coordinatesof<br> a.
    8·1 answer
  • Find sin(a) in the triangle? <br> A.)12/35<br> B.)12/37<br> C.)35/12<br> D.)35/37
    7·1 answer
  • Triangle ABC be similar to triangle DCE.
    15·1 answer
  • Jasmine has 3/4 cup of flour in a mixing bowl. After adding more flour to the mixing bowl, Jasmine says that she now has 5/8 cup
    8·1 answer
  • A survey of Mrs. Ramirez's students showed that 30
    7·1 answer
  • Rewrite the expression in the form x^n<br><br> Thank You
    5·2 answers
  • Find the simple interest on an investment of $3500 for 2.5 years at
    13·1 answer
  • A polygon will be dislates on a coordinate grid to creat a smaller polygon. The polygon is dilated using the organ as the center
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!