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
Nikitich [7]
2 years ago
8

Cassie has test grades of 71, 78 and 83 on the first three tests in her

Mathematics
2 answers:
Neporo4naja [7]2 years ago
3 0

Answer:

x ≥ 88

Step-by-step explanation:

In order to have at least an average of 80 after 4 tests, the sum of her scores must be at least 80 * 4 = 320 so we can write the following inequality:

71 + 78 + 83 + x ≥ 320

232 + x ≥ 320

x ≥ 88

Sphinxa [80]2 years ago
3 0

Answer:

Your correct answer to this problem is x ≥ 88

Step-by-step explanation:

71 + 78 + 83 + x ≥ 320

232 + x ≥ 320

= x ≥ 88

You might be interested in
I need help with two questions please, guathmath doesn't seem to help!
vivado [14]
The pink bar graph is 150
6 0
2 years ago
Factor completely.<br> 25+70x+49x^2=
weeeeeb [17]

Answer:

(7x+5)(7x+5)

Step-by-step explanation:

Factor 25+70x+49x2

49x2+70x+25

=(7x+5)(7x+5)

Answer:

(7x+5)(7x+5)

Hope this helps!

8 0
3 years ago
Need help <br> Choices<br> 4<br> 3<br> 2<br> 1
-Dominant- [34]

Answer:

1

Step-by-step explanation:

The amplitude is the maximum distance away from the middle of the wave. Here we can see that the middle of the wave is the x axis and the farthest point (largest difference between the y coordinate of the x-axis, or the line y = 0, and the wave) is 1 unit away.

4 0
3 years ago
Read 2 more answers
The line through (-2, 3) with slope 2/3 in point slope form​
Debora [2.8K]

Answer:

y - 3 = 2/3(x + 2)

Step-by-step explanation:

slope = 2/3

point-slope form --> y - y1 = m(x - x1)

y - 3 = 2/3(x - -2)

y - 3 = 2/3(x + 2)

point slope form of the line is y - 3 = 2/3(x + 2)

3 0
2 years ago
Read 2 more answers
At a bake sale, as student spent $11.00 buying 3 brownies and 5 cookies. His friend spent $3.95 buying 1 brownie and 2 cookies.
dybincka [34]

Answer:

$2.25

Step-by-step explanation:

Let "b" be the price of 1 brownie and "c" the price of 1 cookie.

At a bake sale, a student spent $11.00 buying 3 brownies and 5 cookies. Symbolicaly,

3 b + 5 c = 11.00   [1]

His friend spent $3.95 buying 1 brownie and 2 cookies. Symbolicaly,

1 b + 2 c = 3.95

b = 3.95 - 2c   [2]

If we replace [2] in [1], we get

3 (3.95 - 2c) + 5 c = 11.00

11.85 - 6c + 5c = 11.00

c = 0.85

If we replace c = 0.85 in [2], we get

b = 3.95 - 2 (0.85) = 2.25

8 0
3 years ago
Other questions:
  • What is the sum of all positive integers less than 300 which are divisible by 3
    8·1 answer
  • What's the standard form for 32
    7·1 answer
  • -(2/3)/4 evaluate, Give your answer in simplest form. Thank You. Please answer Fast...
    6·1 answer
  • When two six-sided dice are rolled, there are 36 possible outcomes. a. Find the probability that the sum is not 4. Express your
    9·1 answer
  • 50000 is 10 times as much as what number
    12·1 answer
  • Arnold joined a book club. It cost $5 to join and $8.75 for each book ordered, including shipping charges. When his first order
    15·1 answer
  • The sum of two numbers is 100,the first number is 12 less than the second number? What equation would represent this equation
    7·1 answer
  • What is the meaning of the point with an x coordinate of 2 ​
    7·1 answer
  • Please answer a.s.a.p!
    13·1 answer
  • Use the derivative function, f ' ( x ) , to determine where the function f ( x ) = − 2 x 2 + 13 x − 8 is increasing.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!