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3 years ago

Idfk m8 help pls lol

Mathematics

1 answer:

goldfiish [28.3K]3 years ago

8 0

Answer:

A is the answer.

Step-by-step explanation:

The answer A shows: c/4 = $4.25

c = equals the total cost of the sundae.

the total cost is $17.

$17/4 = $4.25, the price each of the 4 friends paid.

Which means the answer is A.

Hope this helps!

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Explain how to find a common denominator of 3/4 and 1/5 what is a common denominator of 3/4 and 1/5 show how you can rename 3/4

Paul [167]

Answer:

Common denominator = 20

New fractions are: $\dfrac{15}{20}\ and\ \dfrac{4}{20}$

Step-by-step explanation:

Given:

The fractions are given as:

$\dfrac{3}{4}\ and\ \dfrac{1}{5}$

The denominators of the first fraction is 4 and that of the second fraction is 5.

In order to find the common denominator for 4 and 5, we have to find the least common multiple of each of the numbers.

Multiples of 4 = 4, 8, 12, 16, 20, 24, 28,....

Multiples of 5 = 5, 10, 15, 20, 25, 30,....

Therefore, the least common multiple of 4 and 5 is 20. So, the common denominator is 20.

Now, multiply the numerator and denominator of each fraction by the same suitable number such that the denominator becomes 20.

So, for the first fraction, 4 is in the denominator.

So, 4 when multiplied by 5 gives 20.

So, we multiply the numerator and denominator of first fraction by 5. This gives,

$\dfrac{3}{4}=\dfrac{3\times 5}{4\times 5}=\dfrac{15}{20}$

Now, for the second fraction, 5 is in the denominator.

So, 5 when multiplied by 4 gives 20.

So, we multiply the numerator and denominator of first fraction by 4. This gives,

$\dfrac{1}{5}=\dfrac{1\times 4}{5\times 4}=\dfrac{4}{20}$

Therefore, the new fractions after making the denominators same are:

$\dfrac{15}{20}\ and\ \dfrac{4}{20}$

4 0

3 years ago

HELP asap AB=85m Find the length of Line CD

Aleks [24]

CD = x
BC = y
AB = 85
BD = BC+CD = y+x

tan(angle) = opposite/adjacent
tan(28) = BC/AB
tan(28) = y/85
85*tan(28) = y
y = 85*tan(28)
y = 45.1953016912257

tan(angle) = opposite/adjacent
tan(31) = BD/AB
tan(31) = (y+x)/85
tan(31) = (45.1953016912257+x)/85
85*tan(31) = 45.1953016912257+x
51.0731526173427 = 45.1953016912257+x
51.0731526173427-45.1953016912257 = 45.1953016912257+x-45.1953016912257
5.877850926117 = x
x = 5.877850926117

So CD is roughly 5.877850926117 meters

8 0

3 years ago

Need help will give 5 stars.

olga_2 [115]

Answer:

t=0.64

Step-by-step explanation:

h = -16t^2 +4t +4

We want h =0 since it is hitting the ground

0 = -16t^2 +4t +4

Using the quadratic formula

a = -16 b = 4 c=4

-b ± sqrt( b^2 -4ac)

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

-4 ± sqrt( 4^2 -4(-16)4)

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

2(-16)

-4 ± sqrt( 16+ 256)

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

-32

-4 ± sqrt( 272)

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

-32

-4 ± sqrt( 16*17)

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

-32

-4 ± sqrt( 16) sqrt(17)

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

-32

-4 ± 4 sqrt(17)

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

-32

Divide by -4

1 ± sqrt(17)

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

To the nearest hundredth

t=-0.39

t=0.64

Since time cannot be negative

t=0.64

7 0

3 years ago

Read 2 more answers

11) The function: f(x)= x^2 – 2x + 3 belongs to which family of functions?

Dmitrij [34]

Answer:

i believe a quadratic function

Step-by-step explanation:

quadratics are when an equation is x^2 so yeah (sorry if thats not what it's asking)

7 0

3 years ago

Use linear approximation to estimate 1/4.002

Nady [450]

The approximation to estimate will be 0.2498

3 0

3 years ago