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Luden [163]
3 years ago
11

2) Richard, Henry and Gavin share some sweets in the ratio 4:1:3. Richard gets 7 more sweets

Mathematics
1 answer:
sineoko [7]3 years ago
5 0

Answer:

6

Step-by-step explanation:

Richard gets 7 more sweets than Gavin which would probably make Richard have the most so in total he should have around 8 whilst Gavin has 1 so right now we have 4:1:?. Basing off the fact that Richard would have the most sweets Henry would have to have 6 sweets to be able to divide half of it for 3. 4:1:3

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What’s the inverse of 4x + 12
stiks02 [169]

Answer:

1/4x -3

Step-by-step explanation:

To find the inverse of a function, exchange x and y and then solve for y

y =4x+12

Exchange x and y

x = 4y+12

Solve for y

Subtract 12 from each side

x-12 = 4y+12-12

x-12 = 4y

Divide by 4

(x-12)/4 = 4y/4

The inverse is

1/4x -3

8 0
3 years ago
Evaluate f(x) = –x2 + 1 for x = –3. –9 4 –4 –8
Klio2033 [76]

Answer:

-63

Step-by-step explanation:

Write the problem as a mathematical expression.

f(x)=-x^2+1  for x =3-9 4-4-8

Simplify  4−4−8  to substitute in f(x)=−x^2+1

Subtract  4  from 4

0-8

Subtract  8  from 0

-8

Replace the variable  x  with  −

8  in the expression

f(-8)=-(-8)^2+1

Simplify

f(-8)=-64+1

f(-8)=-63

Answer = -63

Plz give me Brainliest if you can, hope this helps.

5 0
3 years ago
Read 2 more answers
The function h(t) = -4.9t² + 19.6t is used to model the height of an object projected in the air where h(t) is the height (in me
goblinko [34]

Answer:

Step-by-step explanation:

when h(t)=0

-4.9 t²+19.6t=0

4.9t(-t+4)=0

either t=0 or t=4

so domain is 0≤t≤4

for range

h(t)=-4.9t²+19.6t

=-4.9(t²-4t+4-4)

=-4.9(t-2)²+19.6

so range is 0≤h≤19.6

5 0
3 years ago
Read 2 more answers
Give an example of dividing a negative and a negative
Levart [38]
-8/-2 = 4

negative divided by a negative is always positive. ;)
3 0
3 years ago
Tara is saving for an overseas trip. Her taxable income is usually about $20000. She estimates that she will need $5000 for the
wolverine [178]

An income is taxable is such income falls into a category where a proportion of the income is removed, as tax. To have an extra $5000 after tax, Tara must save $6173.

Given that:

Earnings = \$20000 --- normal earnings

Amount = \$5000 ---- the amount needed

From the complete question, the tax rate for earnings between $18201 and $37000 is 19%.

Let the additional amount be x.

So, the equation that calculates the amount needed (after tax) is:

x(1 - 19\%) = 5000

Express as decimal

x(1 - 0.19) = 5000

x(0.81) = 5000

Make x the subject

x = \frac{5000}{0.81}

x = \$6173

Hence, she needs to make an extra of $6173 to save $5000

Read more about taxable income at:

brainly.com/question/17347618

4 0
2 years ago
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