Andre received $60 for his birthday and put it in his piggy bank. Each week, he puts 3 more dollars in his bank. The amount of money in dollars D in his bank is given by D = 3w + 60 where w is the number of weeks he has saved 3 dollars. His sister Lana makes a table of reasonable values for w. Lana selects 42 as a value for w. What is the corresponding table entry for D?(TEACHER HINT: They are asking what D will be if w is 42.)

A.54
B.105
C.186
D. 402

I Don't Get Algebra At All ._.

Answers

Answer 1

Answer: The answer is 186. You replace 42 where (W) is then 3X42 gives you 126. Then add 60 and get 186. D=186

Answer 2

Answer: The answer is C. What you do is 3 times 42 (W=42) then that will be 126 then just add 60 and D=186

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A concert charges $24.50 per daily adult ticket and $13.75 per child’s ticket. A group of 90 people paid $1560.00 for tickets. Write a system of equations that could be used to find x, the number of adult tickets purchased, and y, the number of children's tickets purchased?I know the answer i just need to know how to solve it. Thanks :)

Answers

x=adults
y=childern

x+y=90
24.50x+13.75y=1560

so
mutliply the first equation by -13.75 and add to second equaiton

-13.75x-13.75y=-1237.5
24.50x+13.75y=1560 +
10.75x+0y=323

10.75x=322.5
divide both sides by 10.75
x=30

x=30
sub back

x+y=90
30+y=90
minus 30 both sides
y=60

x=30
y=60
30 adults
60 kids

The two legs (shorter sides ) if a right angle triangle have lengths of 15 cm and 8 cm respectively. Determine the length of the largest third side (to the nearest cm).

Answers

By Pythagoras theorem,
h^2=a^2+o^2
Longest side is the same as the hypotenuse (h)
h^2=8^2+15^2
h^2=64+225
h^2=289
Square root both sides
h=17 cm

A rectangular fish tank contains 3,240 cubic inches of water. The dimensions of the base of the fish tank are 12 inches x 18 inches. How tall is the fish tank?

Answers

Answer:

fish tank is 14.87 ≈ 15 inches tall.

Step-by-step explanation:

Given : A rectangular fish tank contains 3,240 cubic inches of water. The dimensions of the base of the fish tank are 12 inches x 18 inches.

To find : How tall is the fish tank.

Solution : We have given that volume of fish tank = 3240 cubic inches.

Length of tank = 12 inches.

Width of tank = 18 inches .

Volume of rectangular tank = length * width * height

3240 = 12 * 18* height .

3240 = 216 * height.

On dividing both side by 216 and switching the sides .

Height = $(3240)/(216)$ .

Height = 14.87 inches

Therefore, fish tank is 14.87 ≈ 15 inches tall.

Volume = length x Base x height

3240 = 18 x 12 x H

3240 = 216 x H

H = 3240 / 216 = 15 inches

Need help with problem can you help 5x+3y=22 y=2x

Answers

if y = 2x, let's replace it on $5x+3y=22$

$5x+3*(2x)=22$

$5x+6x=22$

$11x=22$

$\boxed{\boxed{x=2}}$

Therefore

$y=2x$

$y=2*2$

$\boxed{\boxed{y=4}}$

5x+3y=22 y=2x
5x+3(2x)=22
5x+6x=22
11x=22
x=2

y=2(2)
y=4
x=2 y=4

Which juice container is larger 2L or 1gal

Answers

1 Gallon because 2 liters are equal to about half a gallon. I hope this helped :D

Convert:-

2L = 4.22675 Pint
1 gal = 8 pint

Which is more?

8 pints, which is 1gal.

A total of 60 boys and girls attended a basketball game. There were twice as many girls at the game as there were boys,How many boys were at the game?