All categories

2 years ago

97. An elevator in a tall building goes up 7 floors, then

Mathematics

1 answer:

Komok [63]2 years ago

5 0

so, start floor = x

x + 7 - 9 - 4 + 8 - 2 = 14

x = 14

the elevator started on the 14th floor.

to verify: 14 + 7 = 21 - 9 = 12 - 4 = 8 + 8 = 16 - 2 = 14

You might be interested in

NEED HELP ASAP !! MARKIN BRAINIEST !! btw the choices for all of em are is not or is

yulyashka [42]

answers are

is not

8 0

2 years ago

What is the dollar value of 7 nickels and 8 quarters

victus00 [196]

Answer:

$2.35

Step-by-step explanation:

Nickels are worth 5 cents each and quarters are worth 25 cents.

7 nickels = 7 * 5 cents = 35 cents

8 quarters = 8 * 25 cents = 200 cents

Total = 200 + 35 = 235 cents

There are 100 cents per dollar, so we can find the dollar value by:

235/100 = $2.35

7 0

2 years ago

Is 11/2 and 6/11 equivalent? Plz I need the help☹️

trapecia [35]

For this case we have the following fractions:

$\frac {11} {2}\\\frac {6} {11}$

We must rewrite the fractions, using the same denominator.

We have then:

We multiply the first fraction by 11 in the numerator and denominator:

$\frac {11} {2} \frac {11} {11}$

We multiply the second fraction by 2 in the numerator and denominator:

$\frac {6} {11} \frac {2} {2}$

Rewriting we have:

For the first fraction:

$\frac {121} {22}$

For the second fraction:

$\frac {12} {22}$

We note that:

$\frac {121} {22}> \frac {12} {22}$

Answer:

The fractions are not equivalent:

$\frac {11} {2}> \frac {6} {11}$

5 0

2 years ago

1.12cm=______mm 2.124mm=_______cm 3.2cm=________mm 4.7mm=_______cm

sashaice [31]

Answer:

1. 11.2 mm

2. 0.2124cm

3. 32mm

4. 4.7cm

8 0

2 years ago

Between which two square roots of integers could you find π

LUCKY_DIMON [66]

Hello.

Since 3 < pi < 4,
√9 < pi √16

In fact, since pi^2 = 9.86,

√9 < pi < √10.

Which means the you can find pi between square roots √9 and √10.

Have a nice day

5 0

2 years ago