Greg receives the following scores on his math tests: {90, 83, 78, 95}. What is the minimum score he needs on the last math test in order to get an 85 average in the class?

Answers

Answer 1

Answer:

79

Step-by-step explanation:

the total of 90, 83, 78, 95= 346 which averages to 86.5

346+79=425

425/5= 85


Related Questions

What type of number is -1/3

Answers

Answer:

a rational number

Step-by-step explanation:

Rational number are numbers that can be written as a fraction where both the numerator and denominator are integers. This means that both the top and bottom of the fraction are whole numbers.

Find the volume of the triangular prism​

Answers

Answer:

your weight loss will help your child get through to your doctor if your child is a si and he's a doctor or 6or a child or an adult or an adult child and you can get in the way I want

A pen costs $1.50. It costs $0.25 less than a marker. If I paid for both supplies with $5.00, what would be my change?

Answers

Answer:

tour change would me $1.75

order the following from least to greatest PLZ I NEED HELP!!!!

Answers

Answer:

½, √0.28, 0.58

Step-by-step explanation:

you need to first change everything into decimals so, ½ = 0.5 , √ 0.28 = 0.53 and 0.58 remains the same. Now you can arrange them from least to greatest once they are in a common form.

Simon and Andrew see a speed limit sign that says 65 kilometers per hour. They decide to convert this speed limit to miles per hour. They each do the conversion separately and come up with different answers. Their work is shown. Who is correct? Explain.

Answers

Answer:

40.38912735 or about 40 miles per hour (rounded to the nearest whole number)

Step-by-step explanation:

1.) You want to convert kilometers per hour to miles per hour.

2.) There are 0.62137119 miles in 1 kilometer.

3.) Multiply 65 by 0.62137119

4.) That equals 40.38912735

5.) This answer can be rounded to 40 mph.

Find the distance between the points (-1,-7) and (8,-9). The answer must be a whole number or a fully simplified radical expression do not round up

Answers

Answer:

The answer is

[tex] \sqrt{85} \: \: \: units[/tex]

Step-by-step explanation:

The distance between two points can be found by using the formula

[tex]d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\ [/tex]

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-1,-7) and (8,-9)

The distance between them is

[tex]d = \sqrt{( { - 1 - 8})^{2} + ({ - 7 + 9})^{2} } \\ = \sqrt{ ({ - 9})^{2} + {2}^{2} } \\ = \sqrt{81 + 4} [/tex]

We have the final answer as

[tex] \sqrt{85} \: \: \: units[/tex]

Hope this helps you

Convert this rational number
to its decimal form and round
to the nearest thousandth.
1/7

Answers

Answer:

0.143

Step-by-step explanation:

1) convert to decimal form: 0.142857

2) rounding to nearest thousandth (3rd decimal place)

3) number is higher than 5 so it rounds up to 0.143

Please help due tonight being graded very urgent need help please Makayla has 68 customers that she delivers a paper to every morning. She gets paid a flat fee of $8.50 per week plus an additional $0.67 per customer per week. How many weeks does she need to deliver papers to save at least $500 to buy a new tablet? make an equation or inequality and solve. Show your work

Answers

ok so 68 customers everything morning times 7 days per week is 476 customer.

now we know that 476 x .67 = $318.92

she make 8.50 per week plus $318.92 from customers

now we have this equation of

500 = 8.5x + 318.92

find x you will know how many weeks she needs.

8.5x = 500 - 318.92

8.5x = 181.08

x = 181.08/ 8.5

x ~~ 21.3 weeks

Answer:

1o weeks

Step-by-step explanation:

As I understand it she get's paid 8.50 per week

8.50x

and 0.67 per customer per week

0.67(68)x since there are 68 customers

it has to be at least 500

[tex]8.5x+0.67(68)x\geq 500\\\\8.5x+45.56x\geq 500\\\\56.06x\geq500\\\\x\geq\frac{500}{56.06} \\\\x\geq 9.24...\\\\x=10[/tex]

combining like terms with negative coefficients
4x+5y-6xy-7x-8y-9xy?

Answers

-3x-3y-15xy .............

NEED HELP ! It’s due tonight

Answers

The graph starts at a value in between 1 and 2 while the expression starts at a value of 6, therefore, the expression has a higher initial value.

Points F, G and H are collinear. If GH = 16, what is FH?

Answers

Answer:

FH = 36 units

Step-by-step explanation:

Points F, G and H are collinear.

Therefore, by joining segments FG and GH we get a segment FH.

FH = FG + GH

By substituting the values of the segments given in the question,

FH = (3x - 1) + (2x + 2)

     = 5x + 1

Since, GH = 16

2x + 2 = 16

2x = 14

x = 7

Therefore, FH = (5x + 1)

                       = 35 + 1

                       = 36 units

Measure of segment FH = 36 units.

The grocery store is having a sale on frozen vegetables. 4 bags are being sold for 11.96. At this rate, what is the cost of :

1 bag
9 bags

Answers

1 bag = 2.99

9 bags = 26.91

How many terms are in the expression? 4x+3x-2y,3y?​

Answers

There are 4 terms. The 4 terms are 4x, 3x, -2y, and 3y. They’re the invidual expressions separated by a + or - sign

[4+(-3)]b-b(-6+2)
Help me plz
its due by midnight ​

Answers

Step-by-step explanation:

[ 4 - 3 ] b -b (-4)

1 b + 4b

5b Ans according to me

heeeeelp Find the distance of AB if A (2, 6) and B (-5, 2).

Answers

Answer:

let A (2, 6) be (x1, y1)

B (-5, 2)  be (x2, y2)

distance AB =√[(x2 - x1)² + (y2 - y1)²]

                    √[(-7)²+ (-4)²]

                   √65

                   

3.409 x 10^-3 In scientific notation.

Answers

Answer:

Since the exponent of the scientific notation is negative, move the decimal point 3 places to the left.

0.003409

someone help with my math please

Answers

Answer:

(-1, -3/2)

Step-by-step explanation:

For this question, we need to use the midpoint formula in order to find the midpoint between the 2 points given on the graph:The midpoint formula is: ((x1+x2)/2 , (y1+y2)/2)The two points that are given are (-3,1) and (1, -4)So:(x1+x2)/2 , (y1+y2)/2(-3+1)/2 , (1+(-4))/2(-2/2 , -3/2)(-1, -3/2)

The Price of dried mango is $9 for every 3/4 pound.

what is the price per pound of the dried mango?

$_ per lb

Answers

Answer:

12

Step-by-step explanation:

9 ÷3 =3 ×4 that is how to do the problem

Help me solve the following?

Answers

10y+30=100
-30=-30
———————
10y=70
————-=7
10. 10

Y=7

Answer:

[See Below]

Step-by-step explanation:

✦ Solve for [tex]10y+30=100[/tex].

✦ Subtract [tex]30[/tex] on each side:

[tex]30-30=Cancels~Out[/tex][tex]100-30=70[/tex]

✦ Divide [tex]10[/tex] on each side:

[tex]10/10=Cancels~Out[/tex][tex]70/10=7[/tex]

So the answer would be [tex]7[/tex].

~Hope this helps Mate. If you need anything feel free to message me.

A water tank holds 486 gallons but leaking at a rate 4 gallons per week. A second water tank holds 648 gallons but is leaking at a rate of 7 gallons per week. After how many weeks will the amount of water in the 2 tanks? The amount of water that holds the two tanks will be the same in _ weeks.

Answers

The first tank contains

486 gal - (4 gal/week) t

gal of water after t weeks.

Similarly, the second tank contains

648 gal - (7 gal/week) t

gal of water.

The tanks hold the same amount of water when these two amounts are equal:

486 gal - (4 gal/week) t = 648 gal - (7 gal/week) t

(7 gal/week) t - (4 gal/week) t = 648 gal - 486 gal

(3 gal/week) t = 162 gal

t = (162 gal) / (3 gal/week)

t = 54 weeks

List four signs that you can replace the equal sign (=) with in a linear equation to produce a linear inequality.

Answers

Answer:

>;

 >__

Step-by-step explanation:

2x + y - z=-7
5y- z=1
3z = 12
solve the 3x3 system

Answers

Answer:

Step-by-step explanation:

3z = 12

z = 4

5y - 4 = 1

5y = 5

y = 1

2x + 1 - 4 = -7

2x - 3 = -7

2x = -4

x = -2

(-2, 1, 4)

simplify the following expressions ( use distributed property ) !

Answers

Answer:

2x + 2

Step-by-step explanation:

Simply distribute 2 to each of the terms (you multiply)

2(x + 1)

2x + 2

[tex]\huge\boxed{Hi!}[/tex]

The Distributive Property  states that

a(b+c)=ab+ac

Let's use this to solve our math problem:

2(x+1)=2x+2

This is our final answer.

[tex]\huge\boxed{Hope\:this\:helps!}[/tex]

[tex]\huge\bold{Good\:luck!}[/tex]

[tex]\huge\mathfrak{LoveLastsAllEternity}[/tex]

The midpoint of AB is M(-2,2). If the coordinates of A are (-8, -1), what are
the coordinates of B?

Answers

Answer:

work is attached and shown

The coordinates of the midpoint will be (4,5).

What is coordinate geometry?

A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A coordinate system in geometry is a method for determining the positions of the points by using one or more numbers or coordinates.

A midpoint is a point that lies on a line connecting two other locations and is in the middle of the line. Given that the midpoint of AB is M(-2,2) and the coordinates of A are (-8, -1).

The midpoint will be calculated by using the formula below:-

( -8 + x ) / 2 = -2

( -8 + x ) = -4

x = -4 + 8 = 4

( -1 + y ) / 2 = 2

( -1 + y ) = 4 = 1 + 4 = 5


Therefore, the coordinates of the midpoint will be (4,5).

To know more about Coordinate geometry follow

brainly.com/question/18269861

#SPJ2

Two trucks leave a factory at the same time. One travels east at 60 miles per hour, and the other travels west at 30 miles per hour. In how many hours will they be 150 miles apart? A 1-2/3 hours B 2 hours C 2-1/2 hours D 5 hours ​

Answers

A 1-2/3 hours there will be

Chris has finished 30% of an art project that has taken him a total of 9 hours so far

Answers

it should take him about 30 hours

I’m in need of help

Answers

Answer:

Step-by-step explanation:

9. (-2, 2) (4, 3)

  (3 - 2)/(4 + 2) = 1/6

10. (-2, 2) (3, 4)

     (4 - 2)/(3 + 2) = 2/5

11. (3 - 13)/(0 + 16)= -10/16= -5/8

12. (-19 - 0)/(7 + 12) = -19/19= -1

18 over 30 in its simplest form

Answers

Answer:

3/5

Step-by-step explanation:

18/ 30 can be simplified by diving it by 3

6/10 simplified again by 2

3/5

Answer: 3/5

Step-by-step explanation:

Emma took 1/4 of a whole cake to school with her. She gave equal pieces of the pie to 5 of her friends. What fraction of the whole cake did each friend get? Include if you used multiplication, division, subtraction or addition

Answers

Answer:

I think it's 1/20.  I used division

Step-by-step explanation:

Please solve both step by step I'll mark you as brainliest

Answers

Answer:

5. -5x - 1

6. -x - 4

Step-by-step explanation:

5.

Distribute (get rid of parentheses):

-5x - 1

6.

Distribute (get rid of parentheses):

-x - 4

Answer:

5. -5x - (- 1)

6. -x - (- 4)

Step-by-step explanation:

-1(5x+1) distributed property

-5x - (- 1 )

-1(x+4) same do distributed property

-x - (-4)

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