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2 years ago

PLS help me. i need to get this right for a graded homework assignment

Mathematics

2 answers:

Marina86 [1]2 years ago

8 0

Answer:

934.14

Step-by-step explanation:

34kurt2 years ago

3 0

Answer:

no hey sis

Step-by-step explanation:

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Find the exact solution to the equation. Show your work for credit. (1 point) four to the power of quantity twelve minus four x

padilas [110]

4^(12-4x)=256 realize that 256 is 4^4 so we really have:

4^(12-4x)=4^4 taking the natural log of both sides

(12-4x)ln4=4ln4 dividing both sides by ln4

12-4x=4 subtract 12 from both sides

-4x=-8 divide both sides by -4

x=2

7 0

3 years ago

G=(z-s)/r solve for z

ryzh [129]

Step-by-step explanation:

G = (z-s) ÷ r

G × r = (z- s)

Gr + s = z

6 0

3 years ago

A cash box contains $74 made up of quarters, half-dollars, and one-dollar

Strike441 [17]

Answer:

25 one-dollar coins, 16 half-dollar coins, and 164 quarters

Step-by-step explanation:

First, set up equations based on the information given:

$0.25q+0.50h+1.00d=74$

$\displaystyle{h=\frac{3}{5}d+1}$

$q=4(d+h)$

Then, substitute q in the first equation with the expression from the third equation:

$0.25[4(d+h)]+0.50h+1.00d=74\\1d+1h+0.50h+1.00d=74\\2d+1.5h=74$

Next, substitute h in that equation with the expression from the second equation:

$\displaystyle{2d+1.5(\frac{3}{5}d+1)=74}$

$2d+0.9d+1.5=74\\2.9d+1.5=74$

Solve for d, the number of one-dollar coins:

$2.9d+1.5=74\\2.9d=72.5\\d=25$

Substitute 25 for d in the second equation to find h, the number of half-dollar coins:

$\displaystyle{h=\frac{3}{5}d+1}$

$\displaystyle{h=\frac{3}{5}(25)+1}$

$h=15+1\\h=16$

Substitute 25 for d and 16 for h in the third equation to find q, the number of quarters:

$q=4(d+h)\\q=4(25+16)\\q=4(41)\\q=164$

Then, verify that the coins total $74:

$0.25(164)+0.50(16)+1.00(25)=74\\41+8+25=74\\74=74\\\text{Check.}$

Next, verify that the number of half-dollar coins is one more than three-fifths of the number of one-dollar coins:

$\displaystyle{h=\frac{3}{5}d+1}$

$\displaystyle{16=\frac{3}{5}(25)+1}$

$16 = 15 + 1\\16 = 16\\\text{Check.}$

Finally, verify that the number of quarters is four times the number one-dollar and half-dollar coins together:

$q=4(d+h)\\164=4(25+16)\\164=4(41)\\164=164\\\text{Check.}$

6 0

3 years ago

A square pyramid has side lengths each measuring 8 centimeters. The height of the pyramid is 3 centimeters. What is the lateral

maks197457 [2]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Which of the following best describes the equation below?

ivann1987 [24]

Answer:

no real solutions

Step-by-step explanation:

2(x + 11) + 5x = 7x - 22

Distribute

2x+22 +5x = 7x -22

Combine like terms

7x +22 = 7x-22

Subtract 7x from each side

7x-7x+22 = 7x-7x-22

22 = -22

This is never true so there are no solutions

4 0

3 years ago