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3 years ago

Explain how to estimate 368+231

Mathematics

1 answer:

alina1380 [7]3 years ago

7 0

Hi there,

368 + 231 = 599

Hope this helps :)

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Simplify. 45 points, thank you! :)

laiz [17]

$\text{Hello there!}\\\\\text{Simplify by combining like terms:}\\\\-8-3x+5-6x\\\\-9x-8+5\\\\-9x-3\\\\\boxed{\text{Answer: -9x-3}}$

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4 years ago

Read 2 more answers

Find the angle that makes them supplementary.

8090 [49]

Answer:

Mathematics NCERT Grade 7, Chapter 5: Lines and Angles is all about different lines, line segments, and angles.

A line segment has two end points.

A ray has only one end point (its vertex).

A line has no end points on either side.

This chapter throws light on topics such as related angles, pair of lines. The chapter deals with different types of angles and lines. The types of angles discussed in this chapter are as follows:

Pairs of Angles Condition

Two complementary angles Measures add up to 90°

Two supplementary angles Measures add up to 180°

Two adjacent angles Have a common vertex and a common arm but no common interior

Linear pair Adjacent and supplementary

A linear pair is a pair of adjacent angles whose non-common sides are opposite rays.

All the types are discussed in detail and are supplemented with examples and short questions.

Under the topic pair of lines, various sub-sections are discussed namely:

Intersecting lines

Transversal

Angles made by a transversal

When two lines intersect (looking like the letter X) we have two pairs of opposite angles. They are called vertically opposite angles. They are equal in measure.

A transversal is a line that intersects two or more lines at distinct points.

Six angles discussed in this section:

1. Interior angles

2. Exterior angles

3. Pairs of Corresponding angles

4. Pairs of Alternate interior angles

5. Pairs of Alternate exterior angles

6. Pairs of interior angles on the same side of the transversal

Transversal of parallel lines

5 0

3 years ago

PLEASE HELPP ILL MARK BRAINLIEST 50 POINTS!! PLEASE

Nutka1998 [239]

Answer:

Step-by-step explanation:

12) Decrease in miles = 22,250 - 14,500 = 7750 miles

$Percent \ decrease = \dfrac{7750}{22250}*100$

= 34.83%

13) Decrease in speed = 40 - 25 = 15 mph

$Percent \ decrease = \dfrac{15}{40}*100$

= 37.5%

6 0

3 years ago

C. Brian saves some money from his allowance to buy Mother a gift. His daily allowance is P50.00

Finger [1]

Answer:

1.thursday

his expenses was p26.85

2.monday he spent p40.8

3.18.90+23.15+11.80+16.35+9.20=approximately p55.6×30 days=p1,668

4.693.80-1,668

so he savings is completely enough

8 0

2 years ago

Solve this equation for x. Round your answer to the nearest hundredth. 0.77 = log x

Alekssandra [29.7K]

Answer:

x ≈ 5.89

General Formulas and Concepts:

Pre-Algebra

Equality Properties

Algebra II

Exponential to Logarithmic: $\displaystyle b^m=x \rightarrow log_bx=m$

Step-by-step explanation:

Step 1: Define

Identify

0.77 = log(x)

Step 2: Solve for x

[Equality Property] Raise both sides to the 10th power: $\displaysytle 10^{0.77} = 10^{logx}$
Simplify: $\displaysytle x = 10^{0.77}$
Evaluate: $\displaysytle x = 5.88844$

8 0

3 years ago