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2 years ago

Work out the area of this triangle. I will mark you as brainliest, please help quick.

Mathematics

1 answer:

nataly862011 [7]2 years ago

3 0

Answer:

22 cm²

Step-by-step explanation:

Work out the area of this triangle.

Area Formula: 1/2b * h where b = base (11cm) and h = height (4 cm)

1/2 *11 * 4 =

5.5 * 4 =

22 cm²

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Four glasses of milk and 2 snack bars have a total of 72 carbohydrates (carbs), and 2 glasses of milk and 3 snack bars have a t

Travka [436]

One glass of milk has 11 carbs and one snack bar has 14 carbs.

Step-by-step explanation:

Let,

Glass of milk = x

Snack bar = y

According to given statement;

4x+2y=72 Eqn 1

2x+3y=64 Eqn 2

Multiplying Eqn 2 by 2

$2(2x+3y=64)\\4x+6y=128\ \ \ Eqn\ 3$

Subtracting Eqn 1 from Eqn 3

$(4x+6y)-(4x+2y)=128-72\\4x+6y-4x-2y=56\\4y=56$

Dividing both sides by 4

$\frac{4y}{4}=\frac{56}{4}\\y=14$

Putting y=14 in Eqn 1

$4x+2(14)=72\\4x+28=72\\4x=72-28\\4x=44$

Dividing both sides by 4

$\frac{4x}{4}=\frac{44}{4}\\x=11$

One glass of milk has 11 carbs and one snack bar has 14 carbs.

Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

6 0

2 years ago

1/2 (4 - 2x); 2-2x can some one help

lakkis [162]

Answer:

x=0

Step-by-step explanation:

7 0

3 years ago

What is the ratio of x to y 14x = 9y A) 14/9 B) 1/9 C) 1/14 D) 9/14

kirza4 [7]

Answer:

A) 14/9

Step-by-step explanation:

14 and 9 have no GCFs (Greatest Common Factors), so the ratio is simply 14/9.

5 0

3 years ago

Help!!! Ill give 100 points!

shtirl [24]

Answer:

7/20

Step-by-step explanation:

5 0

2 years ago

jack purchases 12 gallons of gas on monday .he uses 2/3 of amount purchased communting to and from work during the week addition

Zigmanuir [339]

Gallon he uses to and from work = (2 / 3) of 12

12 * (2 / 3)
= 8 ----- he uses 8 gallons to and from work

+ 2 additinal for errands

therefore gallons for work + gallons for errand = *8 + 2
= 10

your answer is 10

6 0

3 years ago