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3 years ago

Trevor season 8 red birds. He sees 5 more red birds than bluebirds. How many bluebirds does Trevor see?

Mathematics

1 answer:

aliya0001 [1]3 years ago

7 0

Answer:

3 blue birds

Step-by-step explanation:

8-5=3

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David hikes 21/4 miles in 1/2 an hour. What is his rate in miles per hour? At this rate, how long will it take him to walk 18 mi

harkovskaia [24]

Answer:

A) speed = 10.5 miles per hour

B) Time taken by him = 1.714 hours

C) Distance = 10.5 mph × 7 hours = 73.5 miles

Step-by-step explanation:

Given as :

The distance cover by David = $\frac{21}{4}$ miles = 5.25 miles

The time taken by David = $\frac{1}{2}$ hours = 0.5 hours

Let the speed = x mile per hour

So, Distance = Speed × Time

A)or, Speed = $\frac{Distance}{Time}$

Or, Speed = $\frac{5.25}{0.5}$

∴ speed = 10.5 miles per hour

<u>B) Again The Distance cover by him = 18 miles</u>

SO, with speed 10.5 miles per hour

The Time taken by him = $\frac{Distance}{speed}$ hours

Or, Time taken by him = $\frac{18}{10.5}$ hours

∴ Time taken by him = 1.714 hours

<u>C) Again the Time taken by him = 7 hours </u>

So, Distance cover by him with speed 10.5 mph

Or, Distance = 10.5 mph × 7 hours = 73.5 miles

A) speed = 10.5 miles per hour

B) Time taken by him = 1.714 hours

C) Distance = 10.5 mph × 7 hours = 73.5 miles Answes

8 0

3 years ago

It is 10 3/5 miles from Alston to Barton and 12 1/2 miles from Barton to Chester. The distance from Alston to Durbin via Barton

Advocard [28]

Well first you add 10 3/5 and 12 1/2 that will equal 22 7/5 then you take away from 35 that is 13 7/5

8 0

3 years ago

Please help with geometry?

kolezko [41]

<h3>Proof:</h3>

Refer to the attached figure.

There are a couple of ways you can go at this. One is to show the sums of the marked angles are the same, hence ∠B ≅ ∠D. Instead, we're going to show that ΔABD ≅ ΔCDB, hence ∠A ≅ ∠C.

1. AB║DC and BC║AD . . . . given

2. BD is a transversal to both AB║DC and BC║AD . . . . given

3. ∠CBD ≅ ∠ADB . . . . alternate interior angles where a transversal crosses parallel lines are congruent

4. ∠CDB ≅ ∠ABD . . . . alternate interior angles where a transversal crosses parallel lines are congruent

5. BD ≅ BD . . . . reflexive property of congruence

6. ΔABD ≅ ΔCDB . . . . ASA postulate

7. ∠A ≅ ∠C . . . . CPCTC

∠A and ∠C are opposite angles of parallelogram ABCD, so we have shown what you want to have shown.

6 0

3 years ago

Which line is parallel to the line that passes through the points (1, 7) and (-3, 4)?

Viktor [21]

Answer:

Step-by-step explanation:

The slope of the line that passes through the given points is (4-7)/(-3-1) = 3/4.

Since parallel lines have equivalent slopes, the answer is B.

5 0

2 years ago

A rectangular athletic field is twice as long as it is wide. If the perimeter of the athletic field is240 yards, what are its

Setler79 [48]

Answer:

Width = 40 yards

Length = 80 yards

Step-by-step explanation:

Width = x

Length = 2x

2x + 2(2x) = 240 yd

2x + 4x = 240 yd

6x = 240 yd

x = 40

4 0

3 years ago