All categories

3 years ago

HELP ME PLEASE-

Mathematics

1 answer:

polet [3.4K]3 years ago

4 0

Answer:

Step-by-step explanation:

if a is less than zero then b will from 4 down to negative infinity

so b < 4

Does this help at all? ask me some questions if you really want to learn about math ;)

You might be interested in

Lisa is 6 centimeters taller than her friend Ian. Ian is 10 centimeters taller than Jim. Every month, their heights increase by

Temka [501]

Lan is 146 centimeters tall now.

<u><em>Explanation</em></u>

Let, Lan's current height is $h$ centimeters

As Lisa is 6 centimeters taller than Lan and Lan is 10 centimeters taller than Jim, so Lisa's current height = $(h+6)$ centimeters and Jim's current height = $(h-10)$ centimeters.

Every month, their heights increase by 2 centimeters.

So, after 5 months.....

Lan's height = $h+(2*5)=(h+10)$ centimeters,

Lisa's height = $(h+6)+(2*5)= (h+16)$ centimeters and

Jim's height = $(h-10)+(2*5)= h$ centimeters

Given that, the sum of Ian's and Jim's heights will be 140 centimeters more than Lisa's height in 5 months. So the equation will be....

$(h+10)+h= (h+16)+140\\ \\ 2h+10=h+156\\ \\ 2h-h=156-10\\ \\ h=146$

So, the current height of Lan is 146 centimeters.

7 0

3 years ago

1/7(14r+28)=2(r+2)???

Pie

After distributing you get this equation. 2r+4 =2r+4 since it's the same expression on both sides the answer would be r=All real numbers because no matter whatever real number u put for r it will come out the same on both sides

7 0

4 years ago

Find the gcf and lcm of 10and15

Nataliya [291]

GCM is 5 and LCM is 30

5 0

3 years ago

Adult tickets to a basketball game cost $5. Student tickets cost $1. A total of $2,783 was collected on the sale of 1,235 ticket

choli [55]

A = the number of adult tickets

S = the number of student tickets

[you can use different variables x, z, t, etc...]

5A + S = 2783 [$5 per adult plus $1 per student = total $2783]

A + S = 1235 [# of adults plus # of students = 1235]

To find A and S, you need to do substitution. First isolate one of the variables using either one of the equations, I will isolate the A in A + S = 1235:

A + S = 1235 Subtract S on both sides of the equation

A = 1235 - S

Next substitute/plug in (1235 - S) for A to find the value of S:

5A + S = 2783 [isolate/get S by itself in the equation]

5(1235 - S) + S = 2783 Distribute/multiply 5 into (1235 - S)

(5)1235 - (5)S + S = 2783

6175 - 5S + S = 2783 Combine like terms (-5s and S)

6175 - 4S = 2783 Subtract 6175 on both sides

-4S = -3392 Divide -4 on both sides

S = 848

Now that you found S, you can use it to find A:

A + S = 1235

A + 848 = 1235 Subtract 848 on both sides

A = 387

S = 848 student tickets

A = 387 adult tickets

6 0

3 years ago

Lucy invested $19,000 in an account paying an interest rate of 3% compounded annually. Assuming no deposits or withdrawals are m

NNADVOKAT [17]

Answer:

23560

Step-by-step explanation:

3% of 19k is 570

570*8=4560

4560+19000=23560

7 0

3 years ago