Ineed some with my math someone plz

The total area of the two triangles is 100 inches²

Step-by-step explanation:

To solve for the area of a triangle we use the formula

(or base*height divided by 2)

First I solved for the area of the blue triangle.

The base is 12 inches and the height is 10 inches.

* 12 * 10 equals 60 inches².

For the orange triangle the base is 8 inches and the height is 10 inches.

* 8 * 10 equals 40 inches².

60in² + 40in² = 100in²

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of