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Andrej [43]
2 years ago
10

Can somebody tell me the answer to these question please

Mathematics
2 answers:
strojnjashka [21]2 years ago
4 0

Answer:

Step-by-step explanation:

2) Take the number you see (7). How many 7s are there? There are three.

7 x 3

3) What number do you see? 3. How many 3s? Five 3s.

3 x 5

Now you try

Brut [27]2 years ago
3 0

Answer:

Step-by-step explanation:

2) 3*7 = 21
3) 5*3 = 15
4) 3*8 = 24
5) 6*2 = 12
6) 5*5 = 25
7) 2*9 = 18
8) 3*6 = 18
9) 4*10 = 40

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Answer:

78 cm should be the correct answer

Step-by-step explanation:

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A car drove at a rate of 32 miles every minute. If the speed per minute remains the same, which method could be used to determin
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Step-by-step explanation:

if the car speeds at a constant rate of 32mi/m

the number of miles travelled in the next 25 min

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800 miles in the next 25 min

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Bryce lives 26 miles from his grandmother's house .how many kilometers does bryce live from his grandmother's house? round your
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Find the measures of the angles of a triangle if the measure of one angle is twice the measure of a second angle and the third a
guapka [62]

Answer:

<h2><em> 38°, 66° and 76°</em></h2>

Step-by-step explanation:

A triangle consists of 3 angles and sides. The sum of the angles in a triangle is 180°. Let the angle be <A, <B and <C.

<A + <B + <C = 180° ...... 1

If the measure of one angle is twice the measure of a second angle then

<A = 2<B ...... 2

Also if the third angle measures 3 times the second angle decreased by 48, this is expressed as <C = 3<B-48............ 3

Substituting equations 2 and 3 into 1 will give;

(2<B) + <B + (3<B-48) = 180°

6<B- 48 = 180°

add 48 to both sides

6<B-48+48 = 180+48

6<B = 228

<B = 228/6

<B =38°

To get the other angles of the triangle;

Since <A = 2<B  from equation 2;

<A = 2(38)

<A = 76°

Also <C = 3<B-48 from equation 3;

<C = 3(38)-48

<C = 114-48

<C = 66°

<em>Hence the measures of the angles of the triangle are 38°, 66° and 76°</em>

4 0
3 years ago
If M=5x^2+7x-4 and N=-3x^2-4x+5, then M-N equals
Phantasy [73]

Answer:

8x² + 11x - 9

Step-by-step explanation:

M - N

= 5x² + 7x - 4 - 1(- 3x² - 4x + 5) ← distribute parenthesis by - 1

= 5x² + 7x - 4 + 3x² + 4x - 5 ← collect like terms

= 8x² + 11x - 9

4 0
2 years ago
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