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
blsea [12.9K]
1 year ago
7

Celia needs 75% of the marks in an exam to pass. She gets 4/5 of the marks. Does she pass the course? Show your working to justi

fy your answer
Mathematics
2 answers:
goldfiish [28.3K]1 year ago
6 0

Answer:

Yes

Step-by-step explanation:

First lets establish the key points

We know she needs 75% to pass and she gets 4/5 of the marks

Lets make 4/5 a decimal 4/5 X 2/2 is 8/10 better know as .8

.75 = 75%

.8 = 80%

80% > 75%

Meaning She PASSED!!!

kari74 [83]1 year ago
5 0

Answer:

Yes, she passes with 80%

Step-by-step explanation:

4 divided by 5 = 0.8

0.8 multiplied by 100 = 80%

80% is greater than the required 75% needed to pass

You might be interested in
at the elementary school fun fair,the ratio of the number of adults to the number of kids is 4:7. If there are 159 more kids tha
Oxana [17]

the ratio of the number of kids is 4:7

that means for every 7 kids we have 4 adults

7 kids ---- 4 adults

the difference is 3

we dived the difference of the kids between the difference of the ratio

150/3 = 50

the number we obtained must be multiply by the ratio of each part

7(50) = 350 number of kids

4(50)=200 number of adults

there are 200 adults at the fun fair

4 0
1 year ago
You split $1500 between two savings accounts one pays 4%interest and the other pays 5% after one year you have earned $69.50 in
ANTONII [103]

Answer:

Step-by-step explanation:

Use the basic simple interest formula:

P * r * t = I and put the info into a table with those variables along the top, formig the columns we need:

                   P       *       r       *       t      =       I

Acct 1

Acct 2

If we have a total of 1500 to split up between 2 accounts, we put x amount of money into one and then have 1500-x left to put into the other.  We will fill those in along with the interest rates in decimal form and the time of 1 year:

                   P        *        r        *        t        =        I

Acct 1           x               .04                1

Acct 2     1500-x          .05                 1

Looking at the formula we are told that Prt = I, so we will multiply P times r times t and fill in the I column:

                  P        *        r        *        t        -        I

Acct 1         x                 .04              1               .04x

Acct 2    1500-x           .05               1          .05(1500-x)

The total Interest earned by the addition of the interest earned from both accounts is 69.50.  So we add the interest column together and set it equal to 69.50:

.04x + .05(1500 - x) = 69.50 and

.04x + 75 - .05x = 69.50 and

-.01x = -5.5 so

x = 550

That's how much money is in the account earning 4% interest.

7 0
2 years ago
A cyclist travels 3 miles in 15 minutes and then a further 7 miles in 25 minutes without stopping.
Feliz [49]

Answer:

15 mph

Step-by-step explanation

i used a calculator but correct me if im wrong pls

3 0
2 years ago
(3 1/2) (-1 5/7) <br><br><br><br> PLEASE HELP!! SOMEONE PLEASEEEE!!
katen-ka-za [31]

Answer:

-6

Step-by-step explanation:

Use a calculator

8 0
2 years ago
Read 2 more answers
Plz ans with steps... Thx!!
Ganezh [65]

Answer:

16

Step-by-step explanation:

Let the 1st part of your answer be x , so the 2nd part will be 40-x . From the given information, we can write the equation: (1/4)x = (3/8) × (40-x) . We can simplify this into (1/4)x = (120-3x)/8 ; 8x = 480-12x ; 8x+12x = 480 ; 20x = 480 ; x = 480/20; x = 24

Therefore, the 1st part = 24

Plug this into your 40-x equation to get: 40 - 24 = 16

3 0
3 years ago
Other questions:
  • Evaluate each expression. Name the property used in each step.
    9·1 answer
  • Which number line shows the graph of –3? A. number line from minus7 to 7 with point at minus4 B. number line from minus7 to 7 wi
    13·1 answer
  • How do i do this plz help me
    15·2 answers
  • Cameron’s bacteria population is modeled by an equation. Deon models his bacteria population with a graph. Cameron says that on
    15·2 answers
  • Solve for x.<br> Use the completing the square method.<br> x2 + 10x = 6
    7·1 answer
  • a sandbox is in the shape of a right triangle. The two legs measure 9 inches and 16 inches. what is the perimeter of the sandbox
    12·1 answer
  • A ______________ is a relation that assigns exactly one output value to one input value
    12·2 answers
  • Jalen bought 24 juice packs for $7.20 . Tia bought 6 juice packs for $2.70 . Which statement describes the difference in the uni
    9·2 answers
  • Find the domain of f(x)= x^2+4
    15·1 answer
  • What value is equivalent to 5³ – 2 • 3 – (7² + 50)?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!