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3 years ago

Combine Like Terms: 3(p+5) - 8 + 11p

Mathematics

2 answers:

leva [86]3 years ago

7 0

$\bold{Answer}$

$\boxed{\bold{14p \ + \ 7}}$

$\bold{Explanation}$

$\bold{Simplify: \ 3\left(p+5\right)-8+11p}$

$\bold{-------------------}$

$\bold{Expand \ 3\left(p+5\right): \ 3p \ + \ 15}$

$\bold{3p+15-8+11p}$

$\bold{Simplify \ 3p+15-8+11p: \ 14p \ + \ 7}$

$\bold{14p \ + \ 7}$

$\boxed{\bold{Eclipsed}}$

kykrilka [37]3 years ago

6 0

Answer:

14p+7

Step-by-step explanation:

Distribute

3p+15-8+11p

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Find the exact value of cos 120° in simplest form with a rational<br> denominator.

IRINA_888 [86]

Given:

cos 120°

To find:

The exact value of cos 120° in simplest form with a rational denominator.

Solution:

We have,

$\cos 120^\circ$

It can be written as

$\cos 120^\circ=\cos (90^\circ+30^\circ)$

$\cos 120^\circ=-\sin 30^\circ$ $[\because \cos (90^\circ-\theta)=-\sin \theta]$

$\cos 120^\circ=-\left(\dfrac{1}{2}\right)$ $[\because \sin 30^\circ=\dfrac{1}{2}]$

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2 years ago

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lyudmila [28]

Answer:

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Step-by-step explanation:

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3 years ago

I need help Please help.

asambeis [7]

Answer:

Step-by-step explanation:

Number of students 10

Problem 1. $625 for the bus hire per friday, So 625*4=$2500

Problem 2. 2500/25=$100 each for the whole 4 weeks

Problem 3.

10 students tickets 220= 2200 for all tickets. The bus, 625/10 = $62.5*4= $250 dollars for the whole 4 weeks for the bus so in all each student pays $470 each

20 students, tickets 220=4400 for all tickets. The bus, 625/20=$31.25*4=$125 for the whole 4 weeks for the bus, so in all each student must pay $345 each

30 students, tickets 220 = 6600 for all tickets. The bus, 625/30 =$20.83*4=$83.32 for the whole 4 weeks for the bus, so in all each student must pay $303.32 each

41 students, tickets $160=$6560 for all tickets. The bus, because you need 2 buses at 625 each so $1250 for both buses 1250/41= 30.49*4=$121.96 for the whole 4 weeks for the bus. So in al each student must pay $281.96 each

Hope this is correct