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2 years ago

2x+9=17 help me someone plz

Mathematics

1 answer:

Luden [163]2 years ago

6 0

The answer is 4 :)

The reason it is 4 is because 2 x 4 would be 8 and 8 + 9 is 17!

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A drilling machine can drill 12 holes in 6 minutes. If the machine drills holes at a constant speed, it can drill ______ holes i

Lelu [443]

Probably 50 holes in 25 minutes

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3 years ago

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Solve the following compound inequality.<br><br> 5x+7<=-3 or 3x-4>=11

Kobotan [32]

Answer:

$x\leq -2$ or $x\geq 5$

Step-by-step explanation:

$5x+7\leq -3$ or $3x-4\geq 11\\$

$5x+7\leq -3\\5x\leq -10\\x\leq -2$

$3x-4\geq 11\\3x\geq 15\\ x\geq 5$

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3 years ago

calculate the scale factor of abc to def enter answer as a whole number or as a fraction into lowest terms

SVETLANKA909090 [29]

Answer:

Scale is 1/6

Step-by-step explanation:

Since all sides and angles are identical these are congruent triangles

3 ways to solve:

Scale Factor = DE / AB = 12/72 = 1/6

Scale Factor = DF/AC = 7/42 = 1/6

Scale Factor = EF/CB = 11/66 = 1/6

3 0

3 years ago

PLS HELP ASAP WILL GIVE YOU BRAINLIEST

lbvjy [14]

Answer:

y=5 is the correct answer

Step-by-step explanation:

it would be paralell because the x variable goes across in a straight line

4 0

3 years ago

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Find the interest rate needed for the sinking fund to reach the required amount. Assume that the compounding period is the same

Maslowich

Answer:

so rate is 4.72 %

Step-by-step explanation:

Given data

time (t) = 5 year = 5×4 = 20 quarterly

amount = $27456

principal = $1225

to find out

interest rate (r)

solution

we use here amount formula that is

amount = principal ( $(1+r)^{t}$ -1 ) / r .....................1

put all value principal , amount and time in equation 1 and we get rate

rate is r/4 because it is quarterly payment

amount = principal ( $(1+r/4)^{t}$ -1 ) / r/4

27456 = 1225 ( $(1+r/4)^{20}$ -1 ) / r/4

( $(1+r/4)^{20}$ -1 ) / r/4 = 27456/ 1225

( $(1+r)^{20}$ -1 ) / r = 27456/ (1225 × 4)

( $(1+r)^{20}$ -1 ) = r 27456/ (1225 × 4)

now by the tvm solver and amount $27456

graph value

we get r = 0.0472

so rate is 4.72 %

5 0

3 years ago

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