I NEED HELP ASAP please please hurry up!!

strojnjashka [21]

So, first lets define our variables:

let x = the number of dimes
let y = the number of nickels

so our first equation would be x+y = 16

Since dimes are 10 cents and nickels are 5 cents the next equation would be as follows:

.10x+.05y = 1.35

now change the first equation so y = -x+16
now substitute:

.10x+.05(-x+16) = 1.35
then multiply so you get .10x+-.05x+0.8=1.35

combine like terms and you get .05x+0.8 = 1.35
then subtract 0.8 from both sides and you get .05x = 0.55 then subtract
and you get x = 11 then substitute 11 for where x should be and you should get y = 5

So, you have 11 dimes and 5 nickels

6 0

4 years ago

Which type of triangle has side measures of 5 cm, 9 cm, and 12. 7 cm and one angle measure of 128°?.

Verdich [7]

we have different side lengths and thus different angles anyhow, meaning is an Scalene triangle.

6 0

3 years ago

Ethan is thinking of a negative number that is lower than -4 and higher than

s2008m [1.1K]

When the number is odd and a multiple of 3, the number that Ethan is thinking of is -9.

<h3>How to illustrate the number?</h3>

In mathematics, a multiple is the product of any quantity and an integer. It should be noted that, for the quantities a and b, it can be said that b is a multiple of a if b = na for some integer n, which is called the multiplier. If a is not zero, this is equivalent to saying that b/a is an integer.

In this case, Ethan is thinking of a negative number that is lower than -4 and higher than -10 and his number is odd and a multiple of 3. The number is -9 since 9 is a multiple of 3.

Learn more about multiples on:

brainly.com/question/26856218

#SPJ1

7 0

2 years ago

Which situation represents a proportional relationship?

lyudmila [28]

Answer:

D. The cost of purchasing avocados for $1.75 per pound plus a shipping fee of $0.16 per pound.

Step-by-step explanation:

A linear relationship is of the form $y=mx+b$ , where, $m$ is the unit rate and $b$ is the fixed value (constant).