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
sweet [91]
3 years ago
14

Russells previous test scores are 70,74,87,85 what score does he need to get an average of 80

Mathematics
2 answers:
s344n2d4d5 [400]3 years ago
8 0
70+74+87+85 = 316
For the 5th test score, an 80 average needs 400 as the total score.  So 400-316 = 84 on the next test.
Ludmilka [50]3 years ago
3 0

Answer:

84 is the score that you Russell needs on the next test to achieve an average of at least 80.

Step-by-step explanation:

Russell's test scores are:  70,74,87 and 85

Average of the test scores = A = 80

Let thescore needed to achieve an average of 80 be x

Average = \frac{\text{Sum of terms}}{\text{Number of terms}}

A=\frac{70+74+87+85+x}{5}

80=\frac{70+74+87+85+x}{5}

70+74+87+85+x=400

x=400-(70+74+87+85)=84

84 is the score that you Russell needs on the next test to achieve an average of at least 80.

You might be interested in
Please find the circumference, will give brainliest!
stich3 [128]

Answer:

43.96

Step-by-step explanation:

7 0
3 years ago
A coin is thrown at random into the rectangle below.
Vera_Pavlovna [14]

It is unlikely is the expected answer. (<em>c</em><em>o</em><em>r</em><em>r</em><em>e</em><em>c</em><em>t</em><em> </em><em>o</em><em>n</em><em>e</em><em>)</em>

Hope this helps.

4 0
3 years ago
Read 2 more answers
Which pair of rectangles is similar ? A 3,8 and 2,6
ipn [44]
D because they are equal the same if you do 3×6=18 and 2×9=18
They have the same area amount.
~JZ
Hope it helps
4 0
3 years ago
The domain and the range of the reciprocal function are the set of all real numbers. True or false?.
Elodia [21]

False. All real numbers, with the exception of 0 because f (0) = 1 0, fall inside the reciprocal function's domain and range. Y cannot be 0 if x cannot, either.

<h3>What are real numbers?</h3>

In mathematics, a real number is a quantity that may be represented by an endless number of decimal expansions. In contrast to the natural numbers 1, 2, 3,... that result from counting, real numbers are used in measurements of continuously varying quantities such as size and time. They are distinguished from imaginary numbers, which use the symbol I or the square root of 1, by the word "real." A complex number has a real (1) and an imaginary I component, like 1 + i. The positive and negative integers, as well as the fractions created from them (also known as rational numbers), as well as the irrational numbers, are all real numbers.

Contrary to rational numbers, whose decimal expansions always contain a digit or group of digits that repeats itself, such as 1/6 = 0.16666... or 2/7 = 0.285714285714, irrational numbers have decimal expansions that do not repeat themselves. Since there is no regularly repeating group in the decimal produced as 0.42442444244442, it is irrational.

To learn more about the, real numbers visit:

brainly.com/question/9876116

#SPJ4

6 0
2 years ago
The coordinates of the verticals of a rectangle are (-3,4), (7,2), (6,-3), &amp; (-4,-1). What is the perimeter of the rectangle
natali 33 [55]

Answer:

30.594

Step-by-step explanation:

To find perimeter we need to find the length of all the sides

The coordinates are A(-3,4), B(7,2), C(6,-3), D (-4,-1)

To find the length of side , we use distance formula

Distance = \sqrt{(x2-x1)^2+(y2-y1)^2}

Side AB =\sqrt{(7--3)^2+(2-4)^2} = \sqrt{100+4}= \sqrt{104}=10.198

Side BC =\sqrt{(6-7)^2+(-3-2)^2} = \sqrt{1+25}= \sqrt{26}=5.099

Side CD =\sqrt{(-4-6)^2+(-1--3)^2} = \sqrt{100+4}= \sqrt{104}=10.198

Side DA =\sqrt{(-3--4)^2+(4--1)^2} = \sqrt{1+25}= \sqrt{26}=5.099

To find perimeter we add all the sides

10.198 + 5.099 + 10.198 + 5.099= 30.594

the perimeter of the rectangle= 30.594

4 0
3 years ago
Other questions:
  • 1/4 of a rod was painted red. 2/5 was painted orange and 2/7 of the remainder was painted yellow. The yellow section was 20cm lo
    14·1 answer
  • I need help with number 8
    5·1 answer
  • I don't understand how to do this can someone please tell me the answer?:|
    9·2 answers
  • One jar can hold 480 g of mung beans. How many at least the same jars are needed to fill 3.8 kg of mung beans?​
    11·1 answer
  • What is the opposite of the number -2 1/3 ?
    5·2 answers
  • F r e e points if you can answers these questions. Get 4 or the most question correct and ill mark brainliest.
    11·2 answers
  • Find the base of a parallelogram with area of 24 and height of 3 3/4
    5·2 answers
  • G//m..... zxh-iryf-vzu​
    6·1 answer
  • Put these numbers in order from LEAST to GREATEST.<br> 2/3,1/2,3/4,6/10
    12·1 answer
  • Solve for t.......<br><img src="https://tex.z-dn.net/?f=4%20%28t%20%2B%20%5Ccfrac%7B1%7D%7B4%7D%20%5C%3A%20%20%29%20%3D%203" id=
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!