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3 years ago

PLEASE HELP ME!! I AM TAKING A TEST AND I NEED TO KNOW THE ANSWER!!!! GIVING BRAINLIEST

Mathematics

2 answers:

Sloan [31]3 years ago

4 0

Answer:

Yes

Step-by-step explanation:

Both angles can be 90 degrees

Bad White [126]3 years ago

4 0

Answer:

Yes

Step-by-step explanation:

If there is a right triangle, both the interior and exterior angle of that side will be 90 degrees

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Well I would say I'm trying but, that would be a total lie

pav-90 [236]

Answer:

c.-10

Step-by-step explanation:

4x+2=11

x=9/4...(1)

now,

-4x-1=-4x(9/4)-1=-10

7 0

3 years ago

A collection of nickels and dimes is worth $9.45. If the number of dimes is doubled, the value is

eduard

Answer:

The number of nickels is 45 and the number of dimes is 72.

Step-by-step explanation:

Let

x ----> number of nickels

y ----> number of dimes

Remember that

$1\ nickel=\$0.05$

$1\ dime=\$0.10$

$0.05x+0.10y=9.45$ ------> equation A

$0.05x+0.10(2y)=16.65$

$0.05x+0.20y=16.65$ ------> equation B

Solve the system by substitution

we have

$0.05x+0.10y=9.45$ ------> equation A

$0.05x+0.20y=16.65$ ------> equation B

Multiply both equations by 100 both sides

$5x+10y=945$ ----> $5x=945-10y$ --> equation C

$5x+20y=1,665$ ----> equation D

substitute equation C in equation D

$(945-10y)+20y=1,665$

solve for y

$945+10y=1,665$

$10y=1,665-945$

$10y=720$

$y=72\ dimes$

Find the value of x

$5x=945-10y$

$5x=945-10(72)$

$5x=225$

$x=45\ nickels$

Alternative Method

Solve the system by graphing

Remember that the solution is the intersection point both graphs

using a graphing tool

the solution is the point (45,72)

therefore

The number of nickels is 45 and the number of dimes is 72.

7 0

3 years ago

It represents equal parts of a whole or a collection?

Alina [70]

Answer:

Fraction

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Mold grows on bread and every day it doubles by the eighth day the entire bread is covered with mold when was half the bread cov

Brut [27]

Answer:

The mold will cover half the area as much are one day before it.

Step-by-step explanation:

Given:

Every day the mold on bread grows doubles

And by 8th day entire bread covered with it.

To Find:

When was half the bread covered by mold.

Solution:

It is said that area covered by mold doubles on each day

Total days taken to cover entire bread are 8

Let Area of bread be A

So Area covered (A) corresponds to 8 days with doubling.

So on previous day it should What ever area on 8th day/2

i.e A(8)/2

Similar on 6th day A(7)/2

So on 5ht day =A(6)/2 ,4th= A(5)/2, on 3rd= A(4)/2, on 2nd=A(3)/2

On 1st =A(2)/2

So we required Area= half of total.

One day before the 8th day will be 7th day

on that day it will cover half are so that on next day will cover the double of the previous area consumed.

4 0

3 years ago

Solve for p in the literal equation 3p + 41 =q.

denis23 [38]

Answer:

The answer is 44 because 3+41=44

7 0

3 years ago