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3 years ago

7

Help I only have 15 minutes -2 = 12x + 22

2 answers:

Leona [35]3 years ago

7 0

X= -1
Hope this helps dude

otez555 [7]3 years ago

3 0

Answer:

x = -1

you're welcome bud.

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chuck's coin box contains only pennies and nickels. if he jas 66 coins worth 2.38. how many of each type of coin foes he have

schepotkina [342]

Answer:

You have 43 nickles and 23 pennies

Step-by-step explanation:

43 x 5 = 2.15

you have 2.38 total in 66 coins

so 2.38 - 2.15 = 0.23

that will leave you with 23 pennies

23 pennies plus 43 nickles = 2.38

0.23 + 2.15 = 2.38

7 0

2 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

Bond [772]

Answer: (B) 7 left and 8 up

<u>Step-by-step explanation:</u>

$f(x)=\dfrac{1}{x-2}+1\qquad \rightarrow\quad \text{Asymptotes: x = 2, y = 1}\\\\g(x) = \dfrac{1}{x+5}+9\qquad \rightarrow\quad \text{Asymptotes: x = -5, y = 9}\\\\\text{The vertical asymptote shifted to the left 7 units.}\\\text{The horizontal asymptote shifted up 8 units.}\\$

3 0

2 years ago

at food mart, hot dogs can be purchased in packages of 8 for $2.40 or packages of 12 for $3.00. which is a better buy? explain h

olasank [31]

Answer:

12-hot dog package is better buy because the per hot dog price is 5 cents cheaper

Step-by-step explanation:

2.40/8 = 0.30 per hot dog

3.00/12 = 0.25 per hot dog (this is the better buy by $.05)

4 0

3 years ago

Read 2 more answers

The half life of a substance is defined as the time required for the substance to decrease by half. If the weight of a substance

nexus9112 [7]

the weight of the substance after 28 years is 8 grams.

<h3>How to determine the amount</h3>

We have that the half life of a substance is defined as the time required for the substance to decrease by half

The formula for calculating the half - life of a material is given as;

$N(t) = N0 (\frac{1}{2} )^\frac{t}{t^\frac{1}{2} }$

Where

N(t) is final amount
No is the initial amount = 128 grams
t1/2 is the half life = 7 years
t is the time elapsed = 28 years

Substitute into the formula

N(t) = 128 × (0. 5) ^28/ 7

N (t) = 128 × ( 0. 5) ^ 4

N(t) = 128 × 0. 0625

N(t) = 8 grams

Thus, the weight of the substance after 28 years is 8 grams.

Learn more about half life here:

brainly.com/question/26148784

#SPJ1

8 0

1 year ago

6 An account pays

Sergio039 [100]

Answer: £122.4

Step-by-step explanation:

Given

The rate of interest is 4%

The principal invested is £1500

the time period is 2 years

Compound interest is given by

$C.I.=P(1+r\%)^t-P$

put values

$C.I.=1500(1+0.04)^2-1500\\C.I.=1500[1.04^2-1]\\C.I.=1500[1.0816-1]\\C.I.=1500\times 0.0816\\C.I.=122.4$

Therefore, interest earned is £122.4

5 0

2 years ago