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kvasek [131]
3 years ago
6

4) FRIDAY: An unknown quantity which is represented by a letter or a symbol is called _____

Mathematics
1 answer:
lukranit [14]3 years ago
8 0

Answer:

A Variable

Step-by-step explanation:

Variables are used to mark an unknown value. Common math problems ask you to solve for it.

For example in 5x+23=45, 'x' is the variable.

A constant is a number without a variable.

<em>Brainilest Appreciated. </em>

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Divide. Give the exact answer, written as a decimal.
dybincka [34]

Answer:

0.01

Step-by-step explanation:

7 0
3 years ago
Jim’s football team started a play on the 50 yard line. On the first play, the team had a 7-yard gain. On the second play, they
Advocard [28]

Answer:

47 yard line

Step-by-step explanation:

50+7-10=47

3 0
4 years ago
6. Find JL.<br> Please and thank you. 5x-16=3x+4
IRINA_888 [86]

Answer:

JL = 68

Step-by-step explanation:

JM = ML

Hence, 3x + 4 = 5x - 16

Subtract 3x from both sides

4 = 2x - 16

Add 16 to both sides

20 = 2x

Divide both sides by 2

10 = x

Now we want to find JL

Note that JL = JM + ML

JM = 3x + 4 and x = 10

Substitute 10 for x

3(10) + 4

Multiply

30 + 4

Add

JM = 34

Because JM = ML

We simply multiply 34 times 2 to find the length of JL

34 * 2 = 68

JL = 68

4 0
3 years ago
I need help setting up and solving this
melisa1 [442]

e is a special number, so you would need to use a calculator to solve this.

a) replace t in the equation with 5 ( 2005 - 2000 = 5 years)

A = 16.6e^0.0457*5 = 20.86 million Round to nearest tenth = 20.9 million.

b) replace A with 23.3 and solve for t:

23.3 = 16.6e^0.0457*t

Divide both sides by 16.6:

1.4036 = e^0.0457t

Take the natural logarithm of both sides:

0.0457t = LN(1.4036)

Divide both sides by 0.457:

t = LN(1.4036)/0.0457

t = 7.419 years, rounded to nearest tenth = 7.4 years.

6 0
3 years ago
Mr. Stack and Coach Pugh are racing down the highway. Coach Pugh is going five miles more an hour than twice Mr. Stack's speed.
ahrayia [7]

Answer:

50

Step-by-step explanation:

2(Mr stack's speed) = Coach Pugh's speed - 5mph

Mr stack's speed = (105mph - 5mph)/2

Mr stack's speed = 100mph/2

Mr stack's speed = 50mph

5 0
3 years ago
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