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sashaice [31]
2 years ago
9

Here a subtraction problem that has been solved incorrectly 21-9=11 what is the correct way​

Mathematics
1 answer:
Romashka [77]2 years ago
3 0
The correct wat is 21-9=12
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Evan went to the park and saw four animals.
dsp73

Answer:

He saw <u>1 duck</u> and <u>3 dogs</u>.

Step-by-step explanation:

Given:

Evan went to the park and saw four animals.

Each animal was either a duck or a dog.

He saw a total of 14 legs.

Now, to find the number of each animal he had seen.

Let the number of duck be x.

And the number of dog be y.

So, total number of animals:

x+y=4\\y=4-x

Now, the total number of legs he did see:

<em>As we know the legs of a duck are 2 and a dog are 4.</em>

2x+4y=14\\2x+4(4-x)=14\\2x+16-4x=14\\-2x+16=14

Adding both sides by -16 we get:

-2x=-2

Dividing both sides by -2 we get:

x=1

The number of duck = 1.

Now, putting the value of x in above equation we get:

y=4-x

y=4-1\\y=3.

The number of dogs = 3.

Therefore, he saw 1 duck and 3 dogs.

4 0
2 years ago
Solve the formula: V = 1/2 (bh) H for h
Semmy [17]
Times both sides b 2
2V=(bh)H
remember associative property
(ab)c=a(bc)
and
ab=ba
so
(bh)H=h(bH)

2V=h(bH)
divide both sides by bH
\frac{2V}{bH} =h
8 0
3 years ago
Amelia has 3 gallons of paint .Mason have 10 quarts .How many more pints of paint does AMELIA have then mason.
Ber [7]

Answer:

4 Pints

Step-by-step explanation:

According to the scenario, calculations are as follows,

As we know, 1 gallon = 8 Pints

1 Quarts = 2 Pints

So, Amelia = 3 Gallons = 3 × 8 Pints = 24 Pints

Mason = 10 quarts = 10 × 2 Pints = 20 Pints

So, Number of more pints Amelia has = Amelia number of pints - Mason number of pints

= 24 pints - 20 pints

= 4 Pints  

6 0
3 years ago
5x + 5 equals 16 - 6x​
bulgar [2K]

Answer:x=1

Step-by-step explanation:

5 0
3 years ago
Determine the intercepts of the line. 5x-9=-8y-3
Ray Of Light [21]

Hey there,

The x-intercept is= 6/5 = 1.20000

The y-intercept is= 6/8 = 3/4 = 0.75000

:)

7 0
3 years ago
Read 2 more answers
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