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Phantasy [73]
3 years ago
12

15 3/4 divided by 7 5/7. Help

Mathematics
2 answers:
Evgen [1.6K]3 years ago
8 0
15\frac{3}{4}:7\frac{5}{7}\ \ \ |Convert\ mixed\ fractions\ into \ improper\ fractions\\\\
\frac{63}{4}:\frac{54}{7}\ \ \ |Multiply\ first\ fraction\ by\ inverse\ of\ the\ second\\\\
\frac{63}{4}*\frac{7}{54}=\frac{441}{216}=\boxed{2\frac{1}{24}}
stira [4]3 years ago
5 0
Keep change flip////// times 4 by 15 and add 3 and your answer would be over 4 and then times 7 by 7 and add 5 and then you keep your first answer change your dividing sign to a multiplication sign and flip your answer (switch top with bottom and bottom with top) and then multiply across and simplify if needed
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2. f(x)=4x+1 and ​g(x)=x2−4x−5​, find ​(g◦​f)(4​).
Goryan [66]

Answer:

(g · f)(4) = 45

Step-by-step explanation:

f(x)=4x+1

g(x)=x² - 4x- 5

(g · f)(x) = 4(x² - 5) + 1

(g · f)(4) = 4(4² - 5) + 1

Following pemdas

(g · f)(4) = 4(16 - 5) + 1

(g · f)(4) = 4(11) + 1

(g · f)(4) = 44 + 1

(g · f)(4) = 45

8 0
1 year ago
Identify the center and radius of the circle (x+4)^2+(y-2)^2=16
fgiga [73]

Answer: center is (-4,2) radius is 4

Step-by-step explanation:

Equation of circle

is (X-A)^2+(X-B)^2=r^2

The center Of The circle is (A, B)

The radius Of The circle is r

Comparing the given equation and the equation of a circle we get the center Of The circle as (-4,2) and then radius as 4

7 0
3 years ago
Ariel wants to write 8 entries for her blog. After 2 hours, she has 5 entries left. After 4 hours, she has 2 entries left. Which
Komok [63]
After 2 hours she wrote 3 entries.
after 4 hours she wrote 6 entries.
This means that for same period she is writing same number of entries which means her "writing speed" is constant.
that means that graph is linear function (straight line).

slope we calculate by putting coordinates of y and x of any dot on that line. we can use one of those given by text of task. (in 2 hours she wrote 3 entries)
y = k*x
k = y/x
k = 1.5

3 0
3 years ago
Read 2 more answers
How do you find the m and b in the problem y=-x+1?
inysia [295]
In Y=mx+b:

m=slope. That is found by using this formula y2-y1/x2-x1

b=y-intercept. That's found by finding slope, m, and substituting that into y=(m)x+b. Then you have to solve for b and that'll be your y-intercept. 


6 0
3 years ago
3w + 15 - 5 +2 = 5 how do you solve and what's the answer ?
ryzh [129]

Combining the numbers, we get 3w+12=5

3w=-7

w=-7/3

4 0
3 years ago
Read 2 more answers
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