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3 years ago

Using compatible number to estimate the quotient 2116÷7

Mathematics

1 answer:

DerKrebs [107]3 years ago

3 0

Answer:

302

Step-by-step explanation:

7 goes into 21 3 times, so the first digit of the quotient is 3. There's no remainder. Bringing down the second "1," we find this indivisible by 7, and so bring down the 6.Thus, Remember that 7 goes into 14 2 times. Thus, a good estimate would be 302.

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UNIT 5 ACTIVITY 2

photoshop1234 [79]

Answer:

your guess is as good as mine

Step-by-step explanation:

good luck tho

4 0

2 years ago

This is really hard for me can someone please help This gives me a headache trying to do it

Papessa [141]

1. 3x-5<19
3x-5+5<19+5
3x<24
3x/3<24/3
x<8

2. -2x+12<-4
-2x+12-12<-4-12
-2x<-16
-2x/-2>-16/-2
x>8

3. Because the numbers are positive when divided.

4. The inequality sign is reversed because the 2nd to last step is divided by by a negative number. (This is also the same for multiplication)

5. -7d+8>29
-7d+8-8>29-8
-7d/7>21/-7
d>-3

6.12-3b<9
12-12-3b<9-12
-3b/-3>-3/-3
b>1

7.z/7-6=>-5
z/7-6+6=>-5+6
z/7*7=>1*7
z=>7 (what grade are you in?!)

8 0

2 years ago

Find the amount of social security deducted from the check: $835 biweekly.

Inga [223]

Normally 8% is deducted as social security tax.

So,
8% of 835 = 8/100 x 835
= $56.36 (approx.)

4 0

2 years ago

Can someone help me on letters B and C?

skelet666 [1.2K]

Step-by-step explanation:

if he is just talking about the length than it is,

4(13x + 8)

of he is talking about overall length he swam than,

4(13x + 8) + 3(7x - 2)

if x = 12

than

perimeter = 2l + 2b

so, after inserting the values we got,

→ 2[13(12) + 8] + 2[7(12) - 2]

→ 2 (156 + 8) + 2(84 - 2)

→ 2 × 164 + 2 × 82

→ 328 + 164

→ 492 ft. ← perimeter

and yeah, according to me

a is wrong as,

formula of perimeter = 2l + 2b or 2(l+b)

so, the answer should be,

2(13x + 8) + 2(7x - 2) or 2 [ (13x + 8) + (7x - 2)

hope this answer helps you dear...take care and may u have a great day ahead!

4 0

2 years ago

Multiply 2.5 5.4 = (Type an integer or a simplified fraction.)

zepelin [54]

Answer:

Fractional form of 2.5 is 5/2.

5.4 as a fraction is 27/5.

4 0

2 years ago