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pshichka [43]
2 years ago
6

In a class 5here are 15 girls and 35 boys what is the ratio of girls to boys

Mathematics
1 answer:
nordsb [41]2 years ago
6 0

Answer:

girls to boys = 3 : 7

Step-by-step explanation:

girls to boys = 15 : 35

simplify by dividing with 5

girls to boys = 3 : 7

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What are some real life situations using system of equations?
OlgaM077 [116]
Bob's car rental company makes you pay 10 dollars per day you rent the car and a 30 dollar insurance fee

joe's car rental company makes you pay 30 dollars per day you rent the car and a 10 dollar insurance fee

how many days do you need to rent a car for the cost for renting both are the same

bob=10x+30
joe=30x+10
set each to each other
10x+30=30x+10
subtract 10x
30=20x+10
subtract 10
20=20x
divide both sides by 20
1=x
you need to rent 1 day for them to be equal
3 0
3 years ago
Debbie has $460 in a savings account that earns 8% annually. If the interest is not compounded, how much interest will she earn
Bess [88]

She earned $184 in interest
$644 In all

Here's why:
The formula is Interest = Principal x Rate x Time
I = 460 x 8% x 5 or I = 460 x 0.08 x 5. PEMDAS
460(0.08) = 36.8
I = 36.8 x 5
36.8 x 5 = 184
I = $184
To find them in all, add the original amount she deposited with the interest.
460 + 184 = 644
In all: $644
6 0
3 years ago
Read 2 more answers
(√0,04-√(-1,2)²+√121)×√81
Semenov [28]

Answer:  90

Step-by-step explanation:

\displaystyle\ \Large \boldsymbol{} (\sqrt{0,04}-\sqrt{(-1,2)^2}+\sqrt{121 } ) \cdot \sqrt{81} = \\\\\\(0,2-1,2+11)\cdot 9=(11-1)\cdot 9=90

6 0
3 years ago
Joe works for a charity. Each year the charity gives money to different projects. The charity has a total of eight thousand nine
baherus [9]

Answer:

Each =\pounds 1121

Step-by-step explanation:

See comment for complete question.

Given

Total =  \pounds 8968

Projects = 8

Required

Determine the amount allotted to each

From the question, we understand that each project gets each allocation.

So, the amount of each is:

Each =\frac{Total}{Projects}

Each =\frac{\pounds 8968}{8}

Each =\pounds 1121

<em>Each project gets £1121</em>

7 0
3 years ago
Solve the equation. Find x.<br> 20x + 5 - 0 = 5x + 32.5*2
SVEN [57.7K]

Answer:

x = 4

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

20x+5−0=5x+(32.5)(2)

20x+5+0=5x+65

(20x)+(5+0)=5x+65(Combine Like Terms)

20x+5=5x+65

20x+5=5x+65

Step 2: Subtract 5x from both sides.

20x+5−5x=5x+65−5x

15x+5=65

Step 3: Subtract 5 from both sides.

15x+5−5=65−5

15x=60

Step 4: Divide both sides by 15.

15x

15

=

60

15

x=4

Hope this helps!

:)

(:

:)

(:

7 0
3 years ago
Read 2 more answers
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