1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
e-lub [12.9K]
3 years ago
13

Use rounding to estimate

Mathematics
2 answers:
poizon [28]3 years ago
7 0
3. my answer I got was 6.53. I think it rounds to 7

Artyom0805 [142]3 years ago
6 0
First use addition, add everything up so...
First question is asking: 2.57+0.14= 2.71. To round it, see the 7, is it greater than 5? If yes then the 2 will be change to 3. So it's 3 as your answer.
You might be interested in
|x-1| if x&gt;1<br> how do you simplify this
JulsSmile [24]

Use the definition of absolute value.

|x| = \begin{cases} x & \text{if } x \ge0 \\ -x & \text{if } x < 0 \end{cases}

The absolute value is always non-negative. So if x is already non-negative, |x|=x is unchanged. But if x is negative, then |x|=-x because multiplying x by -1 makes it positive.

Now, if x>1, then by the definition of absolute value,

x > 1 \implies x - 1 > 0 \implies \boxed{|x - 1| = x - 1}

4 0
1 year ago
Could someone explain things like radicals with variables that are raised to powers. plz,
Setler79 [48]

When radicals (square roots) include variables, they are still simplified the same way. We just have to work with variables as well as numbers

1) Factor the radicand (the numbers/variables inside the square root). Factor the number into its prime factors and expand the variable(s).

2) Bring any factor listed twice in the radicand to the outside

5 0
2 years ago
Solve for w: k = 3pw<br> please help i have no clue
navik [9.2K]

Answer:

w = \dfrac{k}{3p}

Step-by-step explanation:

k = 3pw

Step 1: switch sides.

3pw = k

Step 2: Since you want w alone, and w is being multiplied by 3p, divide both sides by 3p.

w = \dfrac{k}{3p}

7 0
3 years ago
Find the value of x in the given
iren2701 [21]

Answer:

You divide 62/12=5.166

5 0
3 years ago
Justin plans to spend $35 on sports cards. Regular cards cost $4.50 per pack and foil cards cost $6.00 per pack Which inequality
Dmitriy789 [7]

Answer:Justin plans to spend $20 on sports cards. Regular cards cost $3.50 per pack and foil cards cost $4.50 per pack

number of packs of regular cards =r and the number of packs of foll cards = f

Cost of Regular card = 3.50

Cost of 'r' packs of regular card = 3.50r

Cost of Foil card = 4.50

Cost of 'f' packs of Foil card = 4.50f

Justin plans to spend $20 on sports cards so the sum of cost of regular and Foil cards should be less than or equal to 20

The inequality becomes

3.50r + 4.50f <= 20

3 0
3 years ago
Other questions:
  • Someone please help me with this question!!! Thank you
    8·1 answer
  • Frank the lumberjack has a log that is 291 centimetres long. He cuts it into three pieces. Work out the length of the third piec
    9·1 answer
  • What is the slope of the line that passes through the points (-9, 10) and (21, 15)?
    13·2 answers
  • BRAINLIEST ASAP! PLEASE HELP ME :)
    15·1 answer
  • A school has 200 students and spends $40 on supplies for each student. The principal expects the number of students to increase
    11·1 answer
  • If the 6th term of an A.P. is 46, find the sum of first 11 terms.​
    7·1 answer
  • Enter the value of the exponential expression 5^{0}5 <br> 0
    12·1 answer
  • The volume of a cube can be found using the equation V=s^3 where s represents the length of the sides of the cube. if a cube has
    11·1 answer
  • Solve for x, where x is a real number.<br> 10+ x + 3 =4
    10·2 answers
  • Write the phrase as an expression. Then evaluate the expression when y=20.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!