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3 years ago

Help its urgent!! simple ALGEBRA!!

Mathematics

2 answers:

slamgirl [31]3 years ago

6 0

The answer is 10 large candles and 21 small candles.

eduard3 years ago

4 0

10 large and 21 small candles

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Can someone help for this question just this man

Mnenie [13.5K]

Answer:

141°

Step-by-step explanation:

It's an octagon so the Sum of interior angles is: (8-2)×180=1080

5x+133+16+126+162-12+30=5x+455=1080

5x=625

x=125

x+16=141

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2 years ago

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Factorise fully the following 2x+8

kakasveta [241]

Answer:

it cant be solved

Step-by-step explanation:

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3 years ago

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Help me out please I’ll send the rest

SVEN [57.7K]

Answer:

x=12°

Step-by-step explanation:

3x+6+48=90

3x+54=90

3x=90-54

3x=36

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x=12°

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3 years ago

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Two trains leave stations 306 miles apart at the same time traveling toward each other one is traveling at 90 mph the other at 8

Sergeu [11.5K]

Answer:

They will meet in 1.8 hours.

Step-by-step explanation:

Given that, distance between trains = 306 miles

Let they take time $'t'$ to meet each other.

Speed of first train = 90 mph

Speed of second train = 80 mph

Let distance traveled by first train = $D_1$ miles

Formula for distance:

$Distance = Speed \times Time$

Distance traveled by first train, $D_1 = 90t$

Let distance traveled by first train = $D_2$ miles

Formula for distance:

$Distance = Speed \times Time$

Distance traveled by first train, $D_2 = 80t$

Total distance traveled is 306 miles.

i.e.

$D_1+D_2=306\\\Rightarrow 90t +80t=306\\\Rightarrow 170t=306\\\Rightarrow t =\dfrac{306}{170}\\\Rightarrow \bold{t=1.8\ hr}$

They will meet in 1.8 hours.

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3 years ago

Daniela measures her math book and records its width as 21.9 cm to the nearest tenth of a centimeter. The actual measurement of

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