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zavuch27 [327]
3 years ago
11

What is the value of - 15 - 9 - (- 7)? ​

Mathematics
2 answers:
marissa [1.9K]3 years ago
8 0
<h2>Hey there!</h2><h2 /><h2>\bold{-15-9-(-7)=?}\\ \bold{-15-9 = -24}\\ \bold{-24-(-17) =?}\\ \bold{negative (-) \& negative (-) = positive (+)}\\ \bold{-24+7=-17}\\ \\ \\ \\ \boxed{\boxed{\bold{Answer: -17}}}\huge\checkmark</h2><h2>Good luck on your assignment and enjoy your day! </h2><h3>~\frak{LoveYourselfFirst:)}</h3>
Alex_Xolod [135]3 years ago
3 0

Answer:

Step-by-step explanation:

Here you go mate

Step 1

-15-9-(-7)  Equation/Question

Step 2

-15-9-(-7)  Simplify

24-(-7)

Step 3

24-(-7)  Add them

Answer

-17

Hope this helps

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Calculate the value of 3a – 4b + 6c – 3d, when <br> a = 5 b = 4 c = 3 d = 2
Ne4ueva [31]

Answer:

3a – 4b + 6c – 3d

when a = 5 b = 4 c = 3 d = 2

the value

= 3×5 - 4×4 + 6×3 - 3×2

=15-16+18-6

=11

3 0
2 years ago
14/1 ÷ 3/8 = please show work and answer fast​
jarptica [38.1K]

Answer: 37 1/3

Step-by-step explanation:

14/1÷3/8=?

Dividing two fractions is the same as multiplying the first fraction by the reciprocal (inverse) of the second fraction.

Take the reciprocal of the second fraction by flipping the numerator and denominator and changing the operation to multiplication. Then the equation becomes

14/1 × 8/3=?

For fraction multiplication, multiply the numerators and then multiply the denominators to get

14×8/1×3 = 112/3

This fraction cannot be reduced.

The fraction

112/3

is the same as

112÷3

Convert to a mixed number using

long division so

112/3=37 1/3

Therefore:

14/1 ÷ 3/8=37 1/3

5 0
3 years ago
Write a mixed number to describe the length of the ribbon shown in the figure below.
yulyashka [42]

Step-by-step explanation:

what did we learn in the other question ?

there are 8 equal sub-segments of 1/8 length between neighboring whole numbers.

so, each little line is 1/8.

the marker goes first to 1, and then one little line towards 2.

therefore, that number is 1 1/8.

8 0
2 years ago
In a set of 25 aluminum castings, four castings are defective (D), and the remaining twenty-one are good (G). A quality control
lianna [129]

Answer:

The sample space for selecting the group to test contains <u>2,300</u> elementary events.

Step-by-step explanation:

There are a total of <em>N</em> = 25 aluminum castings.

Of these 25 aluminum castings, <em>n</em>₁ = 4 castings are defective (D) and <em>n</em>₂ = 21 are good (G).

It is provided that a quality control inspector randomly selects three of the twenty-five castings without replacement to test.

In mathematics, the procedure to select k items from n distinct items, without replacement, is known as combinations.

The formula to compute the combinations of k items from n is given by the formula:

{n\choose k}=\frac{n!}{k!(n-k)!}

Compute the number of samples that are possible as follows:

{25\choose 3}=\frac{25!}{3!\times (25-3)!}

      =\frac{25\times 24\times 23\times 22!}{3!\times 22!}\\\\=\frac{25\times 24\times 23}{3\times 2\times 1}\\\\=2300

The sample space for selecting the group to test contains <u>2,300</u> elementary events.

6 0
3 years ago
Question 1 : Match the Term with the correct Definition
Alex_Xolod [135]

Answer:

Great Circle - A

Sphere - B

Ellipse - C

Circle - D

Triangle - E

A triangle

A triangle

7 0
3 years ago
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