2 years ago

For what value of x does 32X – 9^3x-4?

Mathematics

1 answer:

Lubov Fominskaja [6]2 years ago

7 0

Answer: X = 4/61

Step-by-step explanation

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Write and solve a system of linear equations: The larger of two numbers is 18 more than 5 times

Kryger [21]

Answer:

8 and - 2

Step-by-step explanation:

let x be the larger number and y the smaller , then

x = 5y + 18 → (1)

3x + 4y = 16 → (2)

substitute x = 5y + 18 into (2)

3(5y + 18) + 4y = 16 ← distribute parenthesis and simplify left side

15y + 54 + 4y = 16

19y + 54 = 16 ( subtract 54 from both sides )

19y = - 38 ( divide both sides by - 19 )

y = - 2

substitute y = - 2 into (1)

x = 5(- 2) + 18 = - 10 + 18 = 8

then larger number is 8 and smaller is - 2

8 0

2 years ago

For one History test, Keith had to answer 40 questions. Of these 40 questions, Keith answered 28 of them correctly. What percent

muminat

Answer:

Keith scored 70% on the History test.

Step-by-step explanation:

We have been given that for History test, Keith had to answer 40 questions. Of these 40 questions, Keith answered 28 of them correctly.

To find the percentage Keith got on History test, we will have to figure out 28 is what percent of 40.

$\text{Percentage scored by Keith on History test}=\frac{28}{40}\times 100$

$\text{Percentage scored by Keith on History test}=0.7\times 100$

$\text{Percentage scored by Keith on History test}=70$

Therefore, Keith scored 70% on the History test.

5 0

3 years ago

Find Z1 in trig form z1= (-3+4i)

Eva8 [605]

Answer:

i = $\frac{1}{4} z +\frac{3}{4}$

Step-by-step explanation:

$z^{1}$ =−3+4i

4i−3=z

4i−3+3=z+3

4i=z+3

$\frac{4i}{4}$ = $\frac{z+3}{4}$

8 0

3 years ago

5 năm trước tổng số tuổi của hai mẹ con là 55 tuổi. Hiện nay tuổi con bằng 4/9 lần tuổi mẹ. Tính số tuổi của mẹ và tuổi con hiện

soldi70 [24.7K]

Answer:

Step-by-step explanation:

3 0

3 years ago

120 sweets are shared out into three piles, in

Alja [10]

Answer:

Step-by-step explanation:

3+4+1=8

120/8=15

3:4:1

45:50:15

50-15=35

please mark as brainliest!!<3

4 0

3 years ago