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Ilia_Sergeevich [38]

2 years ago

14

A class of 195 students went on a feild trip.they took seven vehicles,some cars and some buses .find the number of cars and buse

s they took if each car holds five students and each bus hold fourty-five students

1 answer:

aleksley [76]2 years ago

7 0

4 buses and 3 cars. that is the answer to your question

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Loook below find the area

sweet-ann [11.9K]

Step-by-step explanation:

step 1. this is a trapezoid. the area A = (b1 + b2)h/2 where b1 is the bottom base and b2 is the top base (per se), and h is the height. this formula is the definition of the area of a trapezoid.

step 2. A = (b1 + b2)h/2 = (22 + 9)(5)/2

step 3. A = 31(5)/2 = 155/2 = 77.5in^2.

5 0

2 years ago

Directions: For the following systems, determine whether or not the ordered triple (1, -1, -2) is a solution to the equations be

uranmaximum [27]

Put the coordinate and check each

#1

$\\ \rm\Rrightarrow 3x-3y-z=2$

$\\ \rm\Rrightarrow 3(1)-3(-1)-(-2)=2$

$\\ \rm\Rrightarrow 3+3+2=2$

$\\ \rm\Rrightarrow 6+2=2$

$\\ \rm\Rrightarrow 8\neq 2$

No

#2

$\\ \rm\Rrightarrow 2(1)-3(-1)-2=-3$

$\\ \rm\Rrightarrow 2+3-2=-3$

$\\ \rm\Rrightarrow 3\neq-3$

Unless you did typing mistake on right hand side it's

No

#3

$\\ \rm\Rrightarrow 1-1-2=-2$

$\\ \rm\Rrightarrow -2=-2$

Yes

#4

$\\ \rm\Rrightarrow 1+2(-1)-(-2)=0$

$\\ \rm\Rrightarrow 1-2+2=0$

$\\ \rm\Rrightarrow 1\neq0$

No

#5

$\\ \rm\Rrightarrow 5(1)+1-5(-2)=16$

$\\ \rm\Rrightarrow5+1+10=16$

$\\ \rm\Rrightarrow 16=16$

Yes

#6

$\\ \rm\Rrightarrow 4(1)+5(-1)-6(-2)=-13$

$\\ \rm\Rrightarrow 4-5+12=-13$

$\\ \rm\Rrightarrow -1+12=-13$

$\\ \rm\Rrightarrow 11\neq -13$

No

8 0

1 year ago

Solve the system by elimination: <br> -2x + 2y + 3z = 0<br> -2x - y + z = -3 <br> 2x+ 3y + 3z = 5

Greeley [361]

First= -2x+2y+3z=0

= -2x+2y+3z +-2y=0+(-2y)

-2x+3z=-2y

-2x+3z=-2y+-3z

-2x=-2y-3z

Divide both by negative two
-2x/-2=-2y-3z/-2

x=y+3/2z that’s the answer.

Use this to help you with other equations

3 0

2 years ago

Keri has $30.67. She goes to Target and buys a pack of pencils for $2.38 and an eraser for 56 cents. How much money did Keri spe

AlekseyPX

Answer:

Keri spent $2.94 and Keri now has $27.73.

Step-by-step explanation:

$2.38+$0.56= $2.94

$30.67-$2.94=$27.73

6 0

2 years ago

15,000 invested at a rate of 4.8% compounded monthly. Write a compound interest function to model the situation . Then find the

Soloha48 [4]

Answer 565

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers