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Lena [83]
2 years ago
15

X= ? The trainable a below are similar

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

\frac{x + 7}{3x + 3}  =  \frac{19}{38} \\ \Leftrightarrow  \frac{x + 7}{3x + 3}  =  \frac{1}{2}  \\ \Leftrightarrow 2x + 14 = 3x + 3 \\ \Leftrightarrow x = 11

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Megan uses 2/3 cup of almonds to make 4 cups of trail mix. Using this same proportion how many cups of almonds would Megan need
PIT_PIT [208]

Answer:

Megan needs 1 and 1/3 cup of almonds to make 9 cups pf trail mix.


Step-by-step explanation:

I'm not good with ratios and fractions so I drew an illustration.

I found out that 1/6 of almond cup is equivalent to 1 cup of trail mix.

So I add 2/3+2/3+1/6

I changed the denominator of 2/3 to 6 and divided 6 by 3 then multiply the answer by 2, then the product will be the numerator.

(6÷3) = 2 (2x2) =4

So, 4/6+4/6+1/6= 9/6

Simply the sum and it will be 1 and 1/3.

7 0
2 years ago
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
What is the solution to the equation?
Lisa [10]
3q + 5 = -2q + 20

add 2q to both sides.

5q + 5 = 20

subtract 5 to both sides.

5q = 15

divide 5 to both sides.

q = \frac{15}{5}

the answer is: q = 3 
5 0
3 years ago
(r3 +6r2 −21r−18)÷(r−3) solve using synthetic division
alexandr402 [8]

Answer:

y = x^2 + 9x + 6    No remainder.

Step-by-step explanation:

The divisor will be 3 The sign on the divisor switches.

3 || 1    +     6    -    21    -   18 ||

                 3         27     + 18

================================

      1          9         6          0


The answser is x^2 + 9x + 6

5 0
3 years ago
a group of 12 runners each drink 64 ounces of water every day how many ounces of water will they drink in 45 days
masha68 [24]
34560 ounces

Step by Step Explanation:

12 x 64 = 768
768 x 45 = 34560 ounces
4 0
3 years ago
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