A student earns an 80% on their science test. If she got 20 questions correct, how many total were on the test?

Answers

Answer 1
25 questions
Explanation: 20 divided by 25 is .8 which is 80%

Related Questions

Send me the answers

Answers

Answer:

sending you my book i answered it

Step-by-step explanation:

Answer:

DEEZNUTZ

Step-by-step explanation:

URMOM

help0000000000000000000

Answers

Answer:

The answer is going to be C.

Step-by-step explanation:

To help you in the future with any question like this one, you can always use Desmos Calculator.

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Homework Progress -
26 / 28 Marks
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Here is a list of numbers:
20 29 30 33 37 40
41
46
50
Use four of the numbers to make a sequence and describe the rule
for continuing your sequence.
I
equences - Term-to-Term Rule
Overview
0​

Answers

Answer:

20 292 02 202 202

Step-by-step explanation:

Write an equivalent expression in word form.

(1- 1/3) / 2

Answers

Answer:

21

Step-by-step explanation:

one third taken away from one, halved
or
half of one minus one third

Can somebody help me? -2-7p<26

Answers

Answer: p>−4

Step-by-step explanation:

Let's solve your inequality step-by-step.

−2−7p<26

Step 1: Simplify both sides of the inequality.

−7p−2<26

Step 2: Add 2 to both sides.

−7p−2+2<26+2

−7p<28

Step 3: Divide both sides by -7.

−7p

−7

<

28

−7

p>−4

What percentage of the pieces was he missing if he had 250 puzzle pieces and was missing 15 What percentage of the pieces was he missing

Answers

Answer:

Percentage of missed puzzle pieces = 6%

Step-by-step explanation:

Total number of puzzle pieces = 250

Missed puzzle pieces = 15

Percentage of the missing puzzle pieces = [tex]\frac{\text{Missed puzzle pieces}}{\text{Total number of puzzle pieces}}\times 100[/tex]

= [tex]\frac{15}{250}\times 100[/tex]

= 15 × 0.4

= 6%

Therefore, percentage of missed puzzle pieces = 6%

In ΔOPQ, the measure of ∠Q=90°, PQ = 1.8 feet, and OP = 7.4 feet. Find the measure of ∠P to the nearest degree.

Answers

Answer:

P=75.922 ≈ 76

Step-by-step explanation:

What function uses the ADJACENT and the HYPOTENUSE?

SOH-CAH-TOA

cos P = adjacent/hypotenuse= 1.8/7.4

Pcos^-1 = (1.8/ 7.4)

P=75.922 ≈ 76

Help ASAP Ill mark brainliest

Answers

Answer:

35°

Step-by-step explanation:

add all =1000

then take the 350×100 =3500 then divide by 1000=35

Answer please !!!
Delta math !!

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Answer:

if it is in inequality form = x>2

if it is in interval notation = (2, infinity in math)

M=-1 and it has a y-intercept of (0,-6). Write the equation that represents the situation.

Answers

Answer:

y=-1x-6

Step-by-step explanation:

do you need a explanation aswell?

Help ASSAP . Find the perimeter I will give you 20 points and brainlyist.

Answers

Answer:

I think it may be 120 cm

Step-by-step explanation:

A F is 13 using pythagorean theorem on triangle CED and applying the hypotenuse length to A F.

ABC is similar to triangle CED and is dilated by a factor of 3  so the base is 36.

using pythagorean theorem on triangle ABC gets the hypotenuse length of 39 which can be applied to FE

add all the values together

39 + 13 + 15 + 36 +12 +5 = 120

(6n – 7) + (8n + 2) = 23

Answers

Answer:100

Step-by-step explanation:

2!2

Answer:

n = 2

Step-by-step explanation:

(6n - 7) + (8n + 2) = 23 (Combine like terms)

14n  - 5 = 23 (Add 5 from both sides)

14n = 28 (divided 14 from both sides)

n = 2

can someone help me with both these questions asap?
15 points

Answers

Answer:

what am I looking at my fault og

solve the system of equations by adding. checking your answer
2x+2y=2
3x-2y=43
the solution of the system is ( , )​

Answers

Answer:

Step-by-step explanation:

This is very easy, because the coefficients of the y terms are 2 and -2. You can easily eliminate the y terms by adding the equations together:

2x + 2y = 2

3x - 2y = 43

-----------------

5x + 0y = 45,  so x = 9

Use the value of x to solve for  y:

2(9) + 2y = 2

y = -8

(x,y) = (2, -8)

The 20% tip on a $75.31 meal

Answers

Answer:

$15.62 is the tip and $90.37 total

Step-by-step explanation:

75.32*.20= 15.62

15.62+75.31= 90.37$

Hope this helps

Multiply 75.31 by .20 and you’ll get 15.06

If you need to find the percent of something convert it to a decimal

So for example 30% would be .30
Just make sure to move the decimal point over to the left twice.

Vice versa for converting decimals to a percent
Ex: .25 = 25%

One number is 4 more than another, and their sum is 60. What is the smaller number?



If x = the larger number and y = the smaller number, then which of the following systems could be used to solve the problem?

x + y = 60 and -x + y = 4
x + y = 60 and x + y = 4
x + y = 60 and x - y = 4
Unlimited Attempts Remain

Answers

Answer:

Step-by-step explanation:

The system is

x+y=60 and x-y=4

If we get the difference between the two equations above we get

x+y-x+y=60-4

2y=56

y=28

PLEAAASSSEE HELP!! ITS DUE IN 1 HOUR

Answers

Answer:

-4 and +4

Step-by-step explanation:

(- - - -) = -4

(+ + + +) = 4 or +4

-4 and +4 hope this helps

Please answer this! I need a quick answer with work.

Answers

Equations -

1. Input u!

[tex] \frac{2.6 - ( - 1)}{5.8} [/tex]

Solve the problem!

[tex] \frac{3.6}{5.8} [/tex]

[tex] \frac{3.6}{5.8} =0.62[/tex]

Answer:

0.44827586

Step-by-step explanation:

(2.6)(−1)/-5.8=-2.6/-5.8 so you get 0.44827586

11 is 62% of what number? Round to the nearest tenth.​

Answers

Answer:17.74

Step-by-step explanation:

What is the equation of the line that passes through the point (1,3)(1,3) and has a slope of 66?

Answers

Answer:

The equation of the line that passes through the point (1,3) with a slope of 66

is

y=66x-63

PLEASE HELP PLEASEEEEE

Answers

Answer:

pi r^2 h/3, height =6, r=10, 100*6=600pi/3=200pi

If f(x)=3x+2, what is f(3)-7

Answers

Answer:

[tex] \orange{ \bold{f(3) - 7 = 4}}[/tex]

Step-by-step explanation:

[tex]f(x) = 3x + 2 \\ \\ plug \: x = 3 \\ \\ f(3) = 3(3) + 2 = 9 + 2 \\ \\ f(3) = 11 \\ \\ f(3) - 7 = 11 - 7\\ \\ \purple{ \bold{f(3) - 7 = 4}}\\ \\ [/tex]

This is for algebra 1

Answers

(732,837329).............

Paula has $50 in a savings account that earns 5% interest per year. The interest is not compounded .How much will she have in 1 year?

Answers

Answer: $52.50

Step-by-step explanation:

There is $50 in the account and it earns interest at a rate of 5% a year.

This interest is not compounded therefore it is simple interest.

To calculate amount earned with simple interest is:

= Deposit * ( 1 + rate * time)

= 50 * ( 1 + 5% * 1 year)

= $52.50

Three tanks are capable of holding 361,841, and 901 of the greatest vessel winch can be used to fill each one of them on exact number of time

Answers

Answer:

Tank which is capable of holding 1 can fill each one of the tanks an exact number of time.

Step-by-step explanation:

Three tanks are capable of holding [tex]361,841,901[/tex]

To find which tank can be used to fill each one of them an exact number of time, find [tex]HCF(361,841,901)[/tex]

[tex]361=19^2\\841=29^2\\901=17(53)[/tex]

Therefore,

[tex]HCF(361,841,901)=1[/tex]

So, tank which is capable of holding 1 can fill each one of the tanks an exact number of time.

Stefan sells Jin a bicycle for ​$127 and a helmet for ​$17.The total cost for Jin is 120% of what Stefan spent originally to buy the bike and helmet. How much did Stefan spend​ originally?How much money did he make by selling the bicycle and helmet to​ Jin?

Answers

Answer:

Stefan spent $120 originally

He made $24 dollars by selling the bicycle and helmet to Jin

Step-by-step explanation:

First, find the total cost:

127 + 17

= 144

To find the original cost, divide this by 1.2

144/1.2

= 120

So, Stefan spent $120 originally.

Now, find how much he made by subtracting 120 from 144:

144 - 120

= 24

So, he made $24 dollars by selling the bicycle and helmet to Jin.

Which answer represents the series in sigma notation?

1+12+14+18+116+132+164




∑j=1712(j+1)

∑j=17(12)j−1

∑j=1712j+1

∑j=172j−1

Answers

Answer: The answer is the second one: ∑j=17(12)j−1

Step-by-step explanation:

(-4,-6) perpendicular to the line y=2x+5

Answers

Here you go!! Hope this helps

what is x and y? help

Answers

y is Six and x is Ten
Since B is double its size your gonna multiply by 2 so
x would equal 10
And with b your dividing by 2
So y would be 6

You deposit $5,000 in a bank account that earns 4% simple interest. How much interest will you earn in 2 years?

Answers

Answer:

Step-by-step explanation:

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