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2 years ago

What is the identity property

1 answer:

Montano1993 [528]2 years ago

3 0

The identity property shows us that any number that adds zero to itself stays itself. The identity for multiplication tells us that any number multiplied by one is itself.

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Divide.round to the nearest tenth .16÷.03220

HACTEHA [7]

Answer:

5.0

Step-by-step explanation:

0.16÷0.03220=4.9689

=5.0

7 0

1 year ago

Need to solve 5t-2r=25 for t

postnew [5]

5t = 25+2r
t = (25+2r)/5 or
t = 5 + (2/5)r

7 0

2 years ago

5.69 Divided By 7 in Divided Decimals by whole numbers

kumpel [21]

Answer:

0.81

Step-by-step explanation:

5 0

2 years ago

Simplify and solve for x. 5(x+20)= 7x+30

hodyreva [135]

Answer:

x = 35

Step-by-step explanation:

Solve for x:

5 (x + 20) = 7 x + 30

Expand out terms of the left hand side:

5 x + 100 = 7 x + 30

Subtract 7 x from both sides:

(5 x - 7 x) + 100 = (7 x - 7 x) + 30

5 x - 7 x = -2 x:

-2 x + 100 = (7 x - 7 x) + 30

7 x - 7 x = 0:

100 - 2 x = 30

Subtract 100 from both sides:

(100 - 100) - 2 x = 30 - 100

100 - 100 = 0:

-2 x = 30 - 100

30 - 100 = -70:

-2 x = -70

Divide both sides of -2 x = -70 by -2:

(-2 x)/(-2) = (-70)/(-2)

(-2)/(-2) = 1:

x = (-70)/(-2)

The gcd of -70 and -2 is -2, so (-70)/(-2) = (-2×35)/(-2×1) = (-2)/(-2)×35 = 35:

Answer: x = 35

6 0

2 years ago

Read 2 more answers

A helicopter is hovering 110 feet in the air over a landing pad. If a man sees the helecopter at an angle of elevation of 29°, w

Pavel [41]

See the attached figure to better understand the problem

we know that

tan 29°=AC/CB--------> CB=AC/tan 29°
AC=110 ft
CB--------> <span>how far the man is from the helicopter landing pad
</span>so
CB=AC/tan 29°----------> CB=110/ tan 29°----------> CB=198.45 ft

the answer is
the man is 198.45 ft from the helicopter landing pad

3 0

2 years ago