Malika's father also offers to put a gift of money in her savings account. He gives an amount equal to 0.15 times the amount Malika saves. How much money does Malika have in her savings account after the gift from her grandparents and her father? (Malika has $282 in her savings account from her grandaprents)
Answers
Grandparent's money = 0.25x = 282
x = 282 / 0.25
x = $1128
So, Father's money = 1128 × 0.15 = $169.2
Now, Total Money in her account would be: 1128 + 282 + 169.2 = $1579.2
In short, Your Final Answer would be $1579.2
Hope this helps!
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Write the equation in function form.then graph the equation x-3y=-9 ???
Martin’s Gift Card
Days
2 4 5 7
Amount remaining 24.10 18.20 15.25 9.35
A.
y – 9.35 = −2.95(x – 7)
B.
y – 18.20 = 2.95(x + 4)
C.
y + 15.25 = −2.95(x + 5)
D.
y + 24.10 = 2.95(x – 2)
Answers
We want to see which linear equation represents the amount remaining on the gift card. We will see that the correct option is A:
y – 9.35 = −2.95(x – 7)
A linear equation in the point-slope form is written as:
y - y₁ = a*(x - x₁)
Where a is the slope of the line and (x₁, y₁) is a point on the line.
If we know two points on the line, (x₁, y₁) and (x₂, y₂) then we can write the slope as:
Here we can use the two first points:
(2, 24.10)
(4, 18.20)
Then the slope is:
Then the equation is something like:
y - y₁ = -2.95*(x - x₁)
Now, from the given options the only one where (x₁, y₁) is a point on the line is the first option, where:
x₁ = 7
y₁ = 9.35
So the correct option is A:
y – 9.35 = −2.95*(x – 7)
If you want to learn more, you can read:
B) 31 in.
C) 30 in.
D) 21 in.
Answers
First do the Pythagorean theorem.
225+ 729= 954
Then find the square root of 954 which is 30.88 repeating, so round up to 31 in.
Answers
3/4 = .75
1/3 = .333""
1/8, 1/3, 3/4.
B. 4/15 CUP
C. 3 3/4 CUPS
D. 6 2/3 CUPS
Answers
The solution is, 4/15 is the amount of sugar that should be used with 1 cup of flour.
What is multiplication?
In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.
here, we have,
Given
A bread recipe requires 3/4 cup of flour
and 1/5 cup of sugar
i.e. ratio of flour and sugar is 3/4 / 1/5
which will remain same for each time we make bread
When 1 cup of flour is used then amount of sugar is
Suppose x cup of sugar is required so equating the ratio of flour to sugar
to get one cup we can multiply by the reciprocal. (the oppisite of the current fraction) 3/4*4/3 = 1.
so then we need to raise the sugar by the same variable
1/5 * 4/3. cross multiplication gives us
1*4=4
3*5=15
x = 4/15
Hence, The solution is, 4/15 is the amount of sugar that should be used with 1 cup of flour.
To learn more on multiplication click:
#SPJ3
1/5 * 4/3. cross multiplication gives us
1*4=4
3*5=15
4/15
Answers
Lets, for ease of understanding, say that the first three number were 64...
Mean=(64+64+64)/3=192/3=64
Now, lets solve for the mean where 'x' is the unknown fourth number and 128 is the mean. (since, the answer said that when the fourth number was added the mean, 64, was doubled '64*2=128')
128=(64+64+64+x)/4
128=(192+x)/4
Multiply both sides by 4
512=192+x
subtract 192 from both sides
320=x
The missing number is 320..
Now lets double check our work.
Mean=(64+64+64+320)/4=512/4=128
Answer=320
so first of all, if the mean is 64 then, u divide the 64/2 and u will get 32 so 32 + 32 would give u 64 but u wanna get the fourth number which 16 so then, u divide 32/2 which gets u the number 16 and then if u add up 16 + 16 + 16 + 16 = 64 so now 16 is the fourth number.
im sincerely sorry cuz i didn't know any other way to explain it but i hope this is correct!! :)